Akbar MR, Putri F, Hidayati B. THE EFFECT OF QUENCHING WITH VARIOUS COOLING MEDIA ON THE HARDNESS OF LEAD SCREW PIN IN A LATHE MACHINE. Algebra [Internet]. 2026 Mar. 17 [cited 2026 Sep. 3];6(1):177-83. Available from: https://algebra.yana.or.id/index.php/ejournal/article/view/179