1.
Iqbal P, Aftab K. Study of Complexation Behaviour of Lignite Extracted Humic Acid with Some Divalent Cations. Eng. Sci. Let. [Internet]. 2023 Oct. 9 [cited 2026 Oct. 8];2(03):99-104. Available from: https://journal.iistr.org/index.php/ESL/article/view/431