RAHMAN, Ahmed Abdel; YOUSIF, Omran. Role of Private Agricultural Extension Sector in Gezira State, Sudan. American Scientific Research Journal for Engineering, Technology, and Sciences, Jordan, v. 25, n. 1, p. 281–288, 2016. Disponível em: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/2016. Acesso em: 17 sep. 2025.