E Saputro, R A Santoso, and N N Saraswati. “Feasibility Study on Performance of Heat Exchanger-001 Refinery in Pusat Pengembangan Sumber Daya Manusia MIGAS Cepu”. BIOMEJ, vol. 2, no. 1, May 2022, pp. 33-39, doi:10.33005/biomej.v2i1.38.