“Application of Inorganic – Organic Eutectic PCM (Phase Change Material) to Improve Coolbox Efficiency”. ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK 15, no. 1 (May 31, 2025): 89–97. Accessed August 11, 2025. https://e-journal.upm.ac.id/index.php/energy/article/view/energy.v15i1.1518.