J. A, I.; B. A, K.; P. O, O. Influence of Maize Varieties and Date of Planting Cowpea into Maize/Cowpea Intercropping System in Makurdi, Southern Guinea Savannah, Nigeria. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 38, n. 1, p. 98–113, 2018. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8861. Acesso em: 5 may. 2024.