HENDRI, Hendri; ARIEF, Yanuar Zulardiansyah; SYUKUR, Abdul. Testing of palm oil-based electric power transformer insulation oil as a renewable energy source. Jurnal Pendidikan Teknologi Kejuruan, Padang, Indonesia, v. 6, n. 1, p. 56–63, 2023. DOI: 10.24036/jptk.v6i1.32323. Disponível em: https://jptk.ppj.unp.ac.id/index.php/jptk/article/view/323. Acesso em: 17 apr. 2026.