Field trials on heavy metals using alpha-chymotryopsin enzyme assay. Journal of Environmental Microbiology and Toxicology, [S. l.], v. 2, n. 1, p. 25–34, 2014. DOI: 10.54987/jemat.v2i1.90. Disponível em: https://journal2.hibiscuspublisher.com/index.php/JEMAT/article/view/90. Acesso em: 11 may. 2026.