IDOKO, O.; EMMANUEL, S.; SALAU, A.; OBIGWA, P. Quality assessment on some soaps sold in Nigeria. Nigerian Journal of Technology, [S. l.], v. 37, n. 4, p. 1137–1140, 2018. DOI: 10.4314/njt.v37i4.37. Disponível em: https://www.ajol.info/index.php/njt/article/view/179743. Acesso em: 26 oct. 2026.