Anugraha, R. P., Annasit, A. Altway, Juwari, dan Renanto. The Optimization of Natural Gas Utilization Network in Single Region Using Pinch Analysis Method. Vol. 20, no. 1, Juni 2020, hlm. 57-66, https://jurnal.ugm.ac.id/v3/AJChE/article/view/9109.