GANA, A.; BIDA ALHAJI, B. . Determination of Number of Manual Hoe Weeding for Optimal Yield of Castor (Ricinus communis L., Euphorbiaceae) in Nigeria . Global Journal Of Botanical Science, [S. l.], v. 2, n. 1, p. 21–25, 2014. DOI: 10.12974/2311-858X.2014.02.01.3. Disponível em: https://savvysciencepublishers.com/index.php/gjbs/article/view/12. Acesso em: 15 mar. 2025.