“Colorimetric Detection of Hg(II) Ions Present in Industrial Wastewater Using Zinc Nanoparticle Synthesized Biologically With Rauwolfia Vomitoria Leaf Extract”. Communication In Physical Sciences 5, no. 4 (August 15, 2020): 509–517. Accessed June 24, 2026. https://journalcps.com/index.php/volumes/article/view/371.