Sayyam, M.E., Saleem Nawaz, Sabeela Ameen, Muhammad Haroon Khan, Hafiza Saba, Safir, A., Bai-Bureh O'bai Kamara and Ali Raza 2026. Adsorptive Removal of Methylene Blue from Aqueous Solution Using Dalbergia Sissoo Leaf Powder as a Low-Cost Biosorbent. International Journal of Economic and Environmental Geology. 17, 3 (Sep. 2026), 151–160. DOI:https://doi.org/10.46660/int.j.econ.environ.geol. v17i3.871.