ESTIMATE THE CONCENTRATIONS OF SOME HEAVY METALS IN SOME SHOES POLISH SAMPLES . EPH-International Journal of Applied Science, [S. l.], v. 2, n. 2, p. 24–27, 2016. DOI: 10.53555/eijas.v2i2.141. Disponível em: http://eijas.com/index.php/as/article/view/141. Acesso em: 18 sep. 2025.