“STUDI UNJUK KERJA BOILER KAPASITAS 18 TON JAM DI LINGKUNGAN PABRIK KELAPA SAWIT”. SAINSTEK 5, no. 1 (June 30, 2017): 30–37. Accessed September 15, 2026. https://ejournal.sttp-yds.ac.id/index.php/js/article/view/95.