Ficus religiosa Tree Leaves as Bioindicators of Heavy Metals in Gorakhpur City, Uttar Pradesh, India, Agrahari, Pooja, R Richa, Swati Kumari, Rai Supriya, Singh Vinay Kumar, and Singh Dinesh Kumar , Pharmacognosy Journal, March 2018, Volume 10, Issue 3, p.416-420, (2018)