B. Narachai, K. Kajsanthia, N. Osakoo, J. Wittayakun, and S. Prayoonpokarach, “ADSORPTION OF OLEIC ACID USING MCM-41 SYNTHESIZED FROM RICE HUSK SILICA”, Suranaree J Sci Technol, vol. 25, no. 1, pp. 37–48, Aug. 2026.