[1]
J. A. B. Gonçalves, G. de O. Pinheiro, and F. R. V. Diaz, “Study of the shape and angularity of abrasive particles, vegetable and mineral, to be incorporated into solid soap with exfoliating action: Kaolin, bentonite, rice microspheres, bamboo and apricot seed”, Editora, Jun. 2023.