Ugwu Patience, Ugwu Patience, Inyagha Stella Inyagha Stella, Udodeme Helen Udodeme Helen, and Diovu Edith Diovu Edith. 2018. “Effect of Heavy Metals on the Features of Medicinal Plants at a Quarrying Site, in Ishi-Agu Ebonyi State Nigeria”. International Journal of Indigenous Herbs and Drugs, April. India, 5-11. https://www.saapjournals.org/index.php/herbsanddrugs/article/view/69.