[1]
D. A. Pitaloka, A. Santoso, and I. F. Hayuningtyas, “Trenggalek Durian Peel Ash a K2O Catalyst in Ultrasonic Biodiesel Production”, J. Indones. Soc. Integr. Chemistry, vol. 17, no. 2, pp. 83–91, Dec. 2025.