Shrestha B, Homagai PL, Pokhrel MR, Ghimire KN. Exhausted Tea Leaves – a low cost bioadsorbent for the removal of Lead (II) and Zinc (II) ions from their aqueous solution. J. Nepal Chem. Soc. [Internet]. 2013 Dec. 19 [cited 2024 Nov. 24];30:123-9. Available from: https://nepjol.info./index.php/JNCS/article/view/9383