MOREKHURE-MPHAHLELE, Refilwe; FOCKE, Walter W.; GROTE, Wiebke. Characterisation of vumba and ubumba clays used for cosmetic purposes. South African Journal of Science, [S. l.], v. 113, n. 3/4, p. 5, 2017. DOI: 10.17159/sajs.2017/20160105. Disponível em: https://sajs.co.za/article/view/3754. Acesso em: 20 apr. 2024.