AKPANYUNG, E.O. Major and Trace Element Levels in Powdered Milk. Pakistan Journal of Nutrition, [S. l.], v. 5, n. 3, p. 198–202, 2006. DOI: 10.3923/pjn.2006.198.202. Disponível em: https://pjnonline.org/pjn/article/view/336. Acesso em: 1 jul. 2025.