Experimental Study Of Wear Testing Of ASTM 440C Steel On A Ball-On-Disc Tribometer Using Variations Of Lubricants. Vomek [Internet]. 2025 Nov. 4 [cited 2026 Apr. 17];7(4):462-70. Available from: http://vomek.ppj.unp.ac.id/index.php/vomek/article/view/896