“Evaluation of Heavy Metals Ions in Calopogonium Mucunoides, Manihot Esculenta, Psidium Guajava and Mangifera Indica  Plant Species Within Quarry Site, Akamkpa, Nigeria and Phyto-remediation Potential”. 2025. Communication In Physical Sciences 12 (4): 1410-19. https://journalcps.com/index.php/volumes/article/view/562.