Uji Kekerasan Bahan Gear Sprocket Dengan Campuran Timah (Sn). Journal of Applied Mechanical Engineering and Renewable Energy, [S. l.], v. 1, n. 1, p. 16–19, 2021. DOI: 10.52158/jamere.v1i1.80. Disponível em: https://journal.isas.or.id/index.php/JAMERE/article/view/80. Acesso em: 8 feb. 2026.