Mazlan, A.F., S.H. Loh, and W.M.A.W.M. Khalik. “Optimization of C18-Cellulose Triacetate Thin Film for Analysis of Caffeine Residue in Water”. Asian Journal of Chemistry 31, no. 9 (July 31, 2019): 2101–2106. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/31_9_34.