فهرست مقالات Osman Tahidu Damba مقاله 1 - Determinants of Adoption of Improved Maize Varieties in Zabzugu-Tatale Districts in the Northern Region of Ghana: A Case Study of Obaatanpa Variety Wahab Ibn Hassan Hamza Adam Osman Damba Tahidu International Journal of Agricultural Science Research& Technology , شماره 5 , سال 8 , پاییز 2018