WITJAHJO, S. UJI PRESTASI MESIN PENDINGIN MENGGUNAKAN REFRIGERAN LPG. AUSTENIT, [S. l.], v. 1, n. 02, 2009. DOI: 10.5281/zenodo.4542668. Disponível em: https://jurnal.polsri.ac.id/index.php/austenit/article/view/99. Acesso em: 3 jul. 2024.