Palapa, N. R., E. I. E. . Manurung, Y. Hanifah, and D. . Philo. “Structural Modification of Bentonite by Rice Husk Biochar for Enhanced Methylene Blue Removal under Visible Irradiation”. Science and Technology Indonesia, vol. 11, no. 3, June 2026, pp. 972-81, doi:10.26554/sti.2026.11.3.972-981.