“Analisa Pengaruh Heat Treatment Terhadap Nilai Kekerasan Expeller Arm Digester di PT. Hindoli Mill Sungai Lilin” (2025) Jurnal Serambi Engineering, 10(2). Available at: http://jse.serambimekkah.id/index.php/jse/article/view/787 (Accessed: 14 August 2026).