Cupu, Dedi Rosa Putra, 		Adji, Aryo Kuncoro, 		Anuar, Kaspul, 		Afrizal, Efi, AND 		Nazaruddin, Nazaruddin.
" Effect of Slip-to-Roll Ratio on Wear Rate and Friction Coefficient of Palm Oil-Base Biolubricant with Additive of Graphene" <em>Proksima</em> [Online], Volume 2 Number 1 (29 February 2024)