ROZAQ, Fadli; WAHJONO, Hari Boedi; PUTRA, Rafli Rianzah; WIRAWAN, Willy Artha; EFFENDY, Marwan. Investigasi Penambahan Betaine pada Media Quenching Surface Treatment untuk Meningkatkan Nilai Kekerasan Rel Kereta Api UIC R54. Jurnal Rekayasa Mesin, [S. l.], v. 19, n. 1, p. 37–44, 2024. DOI: 10.32497/jrm.v19i1.4726. Disponível em: https://jurnal.polines.ac.id/index.php/rekayasa/article/view/4726. Acesso em: 8 nov. 2025.