Sitorus, J., Silitonga, D., Kolala, P., Afisna, L. and Alfian, D. (2025) “Experimental Study Of Wear Testing Of ASTM 440C Steel On A Ball-On-Disc Tribometer Using Variations Of Lubricants”, Jurnal Vokasi Mekanika (VoMek), 7(4), pp. 462-470. doi: 10.24036/vomek.v7i4.896.