YAKUBU, A. A.; BABA, K.; MOHAMMED, I. PROFITABILITY OF CROP PRODUCTION UNDER THE KANO RIVER IRRIGATION PROJECT, NORTHERN, NIGERIA. JOURNAL OF ADVANCES IN AGRICULTURE, [S. l.], v. 6, n. 2, p. 963–972, 2016. DOI: 10.24297/jaa.v6i2.5379. Disponível em: https://rajpub.com/index.php/jaa/article/view/5379jaa. Acesso em: 22 jul. 2024.