Indartono, Y. S., H. Usui, H. Suzuki, S. Tanaka, K. Nakayama, Y. Komoda, and T. Itotagawa. “Particle Size Distribution and Rheolog Ical Characteristic of Trimethylolethane Treated by Cationic Surfactant”. Mesin, vol. 22, no. 2, May 2017, pp. 73-80, https://journals.itb.ac.id/index.php/jtms/article/view/4984.