INVESTIGATION OF TRIBOLOGICAL PROPERTIES OF PALM OIL BIOLUBRICANT MODIFIED NANOPARTICLES. Jurnal Teknologi, [S. l.], v. 76, n. 9, 2015. DOI: 10.11113/jt.v76.5654. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/5654.. Acesso em: 5 may. 2024.