Ihedioha Janefrances N, et al. , translators. “Multi-Residue Analysis of Organochlorine Pesticides in Cocoa Beans (Theobroma Cacao) and Soils from Ondo,Nigeria”. Pakistan Journal of Analytical & Environmental Chemistry, vol. 21, no. 2, Dec. 2020, pp. 219 – 231, https://doi.org/10.21743/pjaec/2020.12.24.