TRIBOLOGICAL PERFORMANCE OF PALM KERNEL OIL WITH ADDITION OF POUR POINT DEPRESSANTS AS A LUBRICANT USING FOUR-BALL TRIBOTESTER UNDER VARIABLE LOAD TEST. Jurnal Teknologi, [S. l.], v. 79, n. 7-3, 2017. DOI: 10.11113/jt.v79.11896. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/11896.. Acesso em: 22 may. 2024.