AHMED, Shafi. Urea Fertilizer for Bangladesh Challenges and Opportunity. Journal of Chemical Engineering, [S. l.], v. 26, n. 1, p. 22–26, 2012. DOI: 10.3329/jce.v26i1.10177. Disponível em: https://www.banglajol.info/index.php/JCE/article/view/10177. Acesso em: 10 oct. 2025.