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		Simanjuntak, Andreas Ronaldo, 		Antara, I Nyoman Gde, 		Budiarsa, I Nyoman, 		Priyotomo, Gadang, 		Royani, Ahmad, 		Nikitasari, Arini, DAN 		Sundjono, Sundjono.
" Inhibitor Alami Ekstrak Kulit Buah Naga Pada Material Baja Api 5l Setelah Perlakuan Panas" <em>Teknik Desain Mekanika</em> [Online], Volume 9 Nomor 4 (1 October 2020)