ALHASSAN, J.; UKWETANG, A. Influence of weed control methods on the yield and yield components of cowpea (<i>Vigna unguiculata</i> (L.) Walp.) varieties in Sokoto, Nigeria. Journal of Applied Sciences and Environmental Management, [S. l.], v. 26, n. 1, p. 85–89, 2022. DOI: 10.4314/jasem.v26i1.14. Disponível em: https://www.ajol.info/index.php/jasem/article/view/222657. Acesso em: 12 sep. 2026.