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		Payana, D., 		Widiyarta, I., & 		Sucipta, M.
(2018).
 Kekerasan Baja Karbon Sedang dengan Variasi  Suhu Permukaan Material.
<em>Jurnal Mettek: Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin, 4</em>(2), 43-48.
doi:10.24843/METTEK.2018.v04.i02.p02