Technical and Economic Efficiency of Sorghum Production under rain-fed semi-mechanized farming system of Gadarif State, Sudan. Int. J. Sci. Res [انترنت]. 15 يونيو، 2025 [وثق 2 يوليو، 2026];4(6). موجود في: https://vsrp.co.uk/index.php/ijsr/article/view/1341