Wardani, K. et al. 2021. Analisis Pengerasan Surface Spline Flange Gardan KRD (Kereta Rel Diesel) dengan Metode Quenching Oil. Majalah Ilmiah Momentum. 17, 2 (Oct. 2021), 84–88. DOI:https://doi.org/10.36499/jim.v17i2.5174.