Ayanda, Opeyemi, Tolulope Ajayi, and Olayemi Bilewu. 2021. “Analysis of Some Heavy Metals in Cow Skin (Ponmo) Sold at Major Markets in Ado-Odo Ota LGA, Ogun State, Nigeria: doi.org 10.26538 Tjnpr V5i6.3”. Tropical Journal of Natural Product Research (TJNPR) 5 (6): 1006-9. https://tjnpr.org/index.php/home/article/view/567.