SULAIMAN RAHAMA, Muhammad, et al. “COMPARATIVE STUDIES BETWEEN ALUM SYNTHESIZED FROM ALUMINUM CANS AND NATURAL COAGULANT SYNTHESIZED FROM WATERMELON SEED”. Studia Universitatis Babeș-Bolyai Chemia, vol. 65, no. 4, Dec. 2020, pp. 125-33, doi:10.24193/subbchem.2020.4.10.