PERFORMA MOTOR 4 LANGKAH BERBAHAN BAKAR CAMPURAN BIOETHANOL DAN PERTALITE DENGAN PERUBAHAN IGNITION TIMING. Journal Mechanical and Manufacture Technology (JMMT), [S. l.], v. 2, n. 1, p. 7–15, 2021. DOI: 10.35891/jmmt.v2i1.2476. Disponível em: https://jurnal.yudharta.ac.id/v2/index.php/jmmt/article/view/2476. Acesso em: 12 nov. 2026.