Multi-residue Analysis of Organochlorine Pesticides in Cocoa Beans (Theobroma cacao) and Soils from Ondo,Nigeria. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 21, n. 2, p. 219 – 231, 2020. DOI: 10.21743/pjaec/2020.12.24. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/140. Acesso em: 12 jul. 2025.