“Design of Heat Pump Water Heater (HPWH) System on Km. Meratus Karimata”. Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan 1, no. 3 (November 29, 2020): 74–77. Accessed August 20, 2026. https://journal.unhas.ac.id/index.php/zonalaut/article/view/11092.