How to cite this article
APA /
Elmulthum, N. A., Abass, A. S., & Emam, A. A. (2020). Vertical versus horizontal expansion of food security crops in Sudan: A causality analysis of 1961-2017. African Journal of Agricultural Research, 15(4), 502-508.
Chicago /
Nagat Ahmed Elmulthum, Amal Saeed Abass and Abda Abdalla Emam
. "Vertical versus horizontal expansion of food security crops in Sudan: A causality analysis of 1961-2017." African Journal of Agricultural Research 15, no. 4 (2020): 502-508.
MLA /
Nagat Ahmed Elmulthum, Amal Saeed Abass and Abda Abdalla Emam
. "Vertical versus horizontal expansion of food security crops in Sudan: A causality analysis of 1961-2017." African Journal of Agricultural Research 15.4 (2020): 502-508.