//-->
Economic evaluation of the crop combinations in the Gezira Scheme (Sudan)
Ahmed, Adam E., (2007)
Market-based policy instruments, irrigation water demand, and crop diversification in the Bow River Basin of Southern Alberta
He, Lixia, (2010)
Fream's principles of food and agriculture
Fream, William, (1992)
Optimal crop combination under soaring oil and energy prices in the kingdom of Saudi Arabia
Elzaki, Raga M., (2022)