Holding Time Karburasi Media Arang Tempurung Kelapa Sawit Terhadap Kekerasan Dan Kedalaman Difusi Baja St41. inotek [Internet]. 2020 Dec. 18 [cited 2025 Dec. 16];2(1):249-56. Available from: https://proceeding.unpkediri.ac.id/index.php/inotek/article/view/491