RASTA, I Made. Wasted Heat Engine Utilization in Central AC Condenser Type Water Chiller for Economical Energy Water Heaters. Jurnal Energi Dan Manufaktur, [S.l.], nov. 2012. ISSN 2541-5328. Available at: <https://ojs.unud.ac.id/index.php/jem/article/view/2298>. Date accessed: 15 dec. 2019.