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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रR. G, ISONGUYO, OJO M. A, JIRGI A. J, और YISA E. S. TECHNICAL PROGRESS AND EFFICIENCY CHANGE IN MAIZE PRODUCTION IN NORTH CENTRAL NIGERIA. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रR. G, ISONGUYO, et al. TECHNICAL PROGRESS AND EFFICIENCY CHANGE IN MAIZE PRODUCTION IN NORTH CENTRAL NIGERIA. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria, 2021.
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