Hadi, Syamsul, Setyawan, Hery, Valeria, Sza Sya, Muzakki, Mochammad, Nurhadi, Nurhadi, Emzain, Zakki, AND Nugraha, Andika. " LAJU KOROSI ST 37 DAN KETAHANAN GORES LAPISAN KHROMIUM HITAM" ELEMEN : JURNAL TEKNIK MESIN [Online], Volume 8 Number 1 (28 June 2021)