Asminah N, Nurkhopipah S, Nurya N. Efektivitas Economizer Pada Boiler Z-1101 A di PT X Indramayu. JPI Unila [Internet]. 2024Dec.31 [cited 2025Aug.13];5(2). Available from: https://jpi.eng.unila.ac.id/index.php/ojs/article/view/130