Sarin, C., I. M. Astina, P. S. Darmanto, and H. Sato. “THERMODYNAMIC PROPERTY MODEL OF WIDE-FLUID PHASE N-BUTANE”. Mesin, vol. 22, no. 2, May 2017, pp. 44-54, https://journals.itb.ac.id/index.php/jtms/article/view/4979.