AZAM, M. S.; SHAFIQUZZAMAN, M.; MISHIMA, I.; NAKAJIMA, J. Measurement of Soluble Arsenic in Soil of Bangladesh by Acid-alkali Sequential Extraction. Journal of Scientific Research, [S. l.], v. 1, n. 1, p. 92–107, 2008. DOI: 10.3329/jsr.v1i1.1058. Disponível em: https://banglajol.info/index.php/JSR/article/view/1058. Acesso em: 17 may. 2022.