| Journal | Issue | Title | |
| Journal of Biology, Agriculture and Healthcare | Vol 9, No 23 (2019) | Opportunities and Constraints in Honey Production and Marketing: The Case of Shebedino District, Sidama Zone, SNNPR, Ethiopia | Abstract |
| Tizazu Toma Dilebo | |||
| Developing Country Studies | Vol 4, No 26 (2014) | Opportunities and Challenges of Regionalism: Zimbabwe in the Comesa Customs Union | Abstract PDF |
| Kumbirai Ngwaru, Veronica Mufudza, Shupikai Zebron, Zadzisai Machingambi | |||
| Developing Country Studies | Vol 9, No 3 (2019) | Opportunities and Challenges in Marketing of Agricultural Inputs and Outputs: The Case of Damot Farmers’ Cooperative Union, Amhara Region | Abstract PDF |
| Yilkal Andualem Demeke | |||
| Industrial Engineering Letters | Vol 6, No 8 (2016) | Opportunities and Constraints of Cow Milk Value Chain: The Case of Laelay Maichew District, Central Zone of Tigray, Ethiopia. | Abstract PDF |
| Getachew M. | |||
| Industrial Engineering Letters | Vol 8, No 5 (2018) | Opportunities and Challenges of Investment Along a Supply Chain: The Case of Selected Investment Areas of Ethiopia | Abstract PDF |
| Bekele Reta | |||
| Advances in Life Science and Technology | Vol 22 (2014) | Opportunities of Bench Terracing in Tigray, Ethiopia: Taking Land to Water Perspective | Abstract PDF |
| Hagos Gebreslassie | |||
| Advances in Life Science and Technology | Vol 72 (2019) | Opportunities and Challenges of Honey and Bees Wax Production in Ethiopia: A Systematic Review | Abstract PDF |
| Addisu Tadesse | |||
| Advances in Life Science and Technology | Vol 98 (2023) | Opportunities of Genomic Selection in the Improvement of Dairy Cattle Productivity: A Review | Abstract PDF |
| Birara Tade | |||
| International Journal of African and Asian Studies | Vol 71 (2021) | Opportunities and Challenges of Irrigated Crop Production in Dry Land Areas. Review | Abstract PDF |
| Girma Abebe | |||
| Journal of Poverty, Investment and Development | Vol 48 (2019) | Opportunities and Challenges of Private Investment in East Gojjam Zone of Amhara Regional State, Ethiopia | Abstract PDF |
| Megbaru Tesfaw Molla | |||
| Journal of Resources Development and Management | Vol 8 (2015) | Opportunity, Challenge and Achievements of Global Carbon Trading: Review Paper | Abstract PDF |
| Ermias Melaku Addis | |||
| Journal of Tourism, Hospitality and Sports | Vol 68 (2025) | Opportunities and Challenges of Community Participation in Community-Based Ecotourism Development: Wof-Washa National Priority Forest Area | Abstract PDF |
| Shewandagne Alemayehu | |||
| Journal of Law, Policy and Globalization | Vol 29 (2014) | Opposition Movement and Insertion of Undemocratic Provisions in the Constitution of the People’s Republic of Bangladesh: A Critical Analysis. | Abstract PDF |
| Md. Morshedul Islam | |||
| Innovative Systems Design and Engineering | Vol 8, No 3 (2017) | Optical Wireless Communications: Current and Future Trends | Abstract PDF |
| Zouhair Al-qudah | |||
| Journal of Natural Sciences Research | Vol 4, No 5 (2014) | Optical properties of vanadyl phthalocyanine thin films and nonlinear refractive index of vanadyl phthalocyanine doped PMMA by using thermal lens spectrometry technique | Abstract PDF |
| Qusay Mohammed Ali Hassan | |||
| Journal of Natural Sciences Research | Vol 5, No 3 (2015) | Optical Properties of Tin Selenide Thin Films Prepared by Chemical Bath Deposition Technique | Abstract PDF |
| Okoli Donald Nnanyere | |||
| Chemistry and Materials Research | Vol 3, No 7 (2013) | Optical Properties of (PVA-CoCl2) Composites | Abstract PDF |
| Majeed Ali Habeeb, Farhan Lafta Rashid, Saba R. Salman, Hind Ahmed, Ahmed Hashim, Mohamed A. Mahdi | |||
| Chemistry and Materials Research | Vol 3, No 7 (2013) | Optical Properties of (PVA-CrCl2) Composites | Abstract PDF |
| Ahmed Hashim, Amjed Marza, Bahaa H. Rabee, Majeed Ali Habeeb, Nahida Abd-alkadhim, Athraa Saad | |||
| Chemistry and Materials Research | Vol 3, No 9 (2013) | Optical Characterization of Polyvinyl alcohol - Ammonium Nitrate Polymer Electrolytes Films | Abstract PDF |
| Omed Gh. Abdullah, Bakhtyar K. Aziz, Sarkawt A. Hussen | |||
| Chemistry and Materials Research | Vol 7, No 2 (2015) | Optical Properties of Chemical Bath Deposited Magnesium Sulphide Thin Films | Abstract PDF |
| OKOLI D.N. | |||
| Journal of Energy Technologies and Policy | Vol 3, No 5 (2013) | Optical Properties of (Polystyrene-Wood buckthorn Peel) Composites | Abstract PDF |
| Hani Najm Obaid, Angham.G. Hadi, Farhan Lafta, Ahmed. Hashim | |||
| Advances in Physics Theories and Applications | Vol 16 (2013) | Optical Properties of PVA-BaSO4.5H2O Composites | Abstract PDF |
| Raheem G. Kadhim, Mohammed A. Razooqi, Rasha A. Abdullah, Fadhil K. Flaifil | |||
| Advances in Physics Theories and Applications | Vol 24 (2013) | Optical Properties For (PVA- PEG-NiNO3) Composites | Abstract PDF |
| Kaiser mahdy, Salar Hussein Ibrahem, Ahmed Hashim, Hussein Hakim | |||
| Advances in Physics Theories and Applications | Vol 34 (2014) | Optical Properties of Semiconducting Pyrite Deposited by Aerosol Assisted Chemical Vapour Deposition (AACVD) Method | Abstract PDF |
| Christian Nweze | |||
| Advances in Physics Theories and Applications | Vol 14 (2013) | Optical Detection And Spectroscopy Of Single Molecules In A Solid, Quantum Geometry, “Modulation” That Reduce The Noisy Background, Consciousness Continuum, Nine Unsolved Problems in Physics, Concatenation Of Quantum Mechanics And Einstein’s Field Equatio | Abstract |
| K.N.P. Kumar, C.J. Prabhakara, S.K. Narasimha Murthy, B.J. Gireesha | |||
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