NOVANDY, A. PENENTUAN MASA PENGGANTIAN PELUMAS MELALUI MONITORING PELUMAS. Swara Patra : Majalah Ilmiah PPSDM Migas, [S. l.], v. 2, n. 3, 2012. Disponível em: http://ejurnal.ppsdmmigas.esdm.go.id/sp/index.php/swarapatra/article/view/84. Acesso em: 18 may. 2024.