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1
المؤلفون: Umar, A.S.S., Rahman, S., Makinta, A.A.
المصدر: Journal of Agriculture and Environment; Vol. 13 No. 1 (2017); 1-11
وصف الملف: application/pdf
URL الوصول: https://explore.openaire.eu/search/publication?articleId=78975075580c::4b153c5c3ea6f2db2340036ac0ce269b
https://www.ajol.info/index.php/jagrenv/article/view/235989 -
2
المؤلفون: Umar, A.S.S., Makinta, A.A., Mamadi, A.A.
المصدر: Journal of Agriculture and Environment; Vol. 15 No. 1 (2019); 33-40
وصف الملف: application/pdf
URL الوصول: https://explore.openaire.eu/search/publication?articleId=78975075580c::a8532f66b32779ab840fec36bda2e5bf
https://www.ajol.info/index.php/jagrenv/article/view/234975 -
3
المؤلفون: Umar, A.S.S., Abdulkadir, M.B.
المصدر: International Letters of Social and Humanistic Sciences(51)
الإتاحة: http://data.europeana.eu/aggregation/europeana/2048425/item_VWNPE2IAH264CIPMYSU5QLGF6IR4ELIQ
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4دورية
المؤلفون: Abdulkadir, M.B., Umar, A.S.S.
المصدر: International Letters of Social and Humanistic Sciences, 51, 152-157
مصطلحات موضوعية: Soziologie, Anthropologie, Wirtschaft, Sociology & anthropology, Economics, Agrarsoziologie, Wirtschaftssektoren, Rural Sociology, Economic Sectors, Nigeria, Afrika, Landwirtschaft, Produktion, landwirtschaftliche Entwicklung, Bodennutzung, Bewässerung, neue Technologie, Beratung, Kreditvergabe, Genossenschaft, Africa, agriculture, production, agricultural development, land use, irrigation, new technology, counseling, lending, cooperative
URL الوصول: http://www.scipress.com/ILSHS.51.152.pdf
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5
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6تقرير
المؤلفون: Yakubu, S. A., Umar, A.S.S., Umar, S.U, Dan-Musa, A.H.
المصدر: Nigerian Association of Agricultural Economists, 2017 Annual NAAE Conference, October 16-19, Abeokuta, Nigeria.
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7تقرير
المؤلفون: Yakubu, S. A., Umar, A.S.S., Umar, S.U., Dan-Musa, A. H
المصدر: Nigerian Association of Agricultural Economists, 2017 Annual NAAE Conference, October 16-19, Abeokuta, Nigeria.