SAIFUDIN, S. PENGARUH VARIA SI JENIS OLI SAMPING (OIL MIXTURE) TERHADAP PRESTASI MESIN DAN EMISI GAS BUANG PADA KENDARAAN BERMOTOR 2 TAK. ReTII, [S. l.], 2015. Disponível em: https://journal.itny.ac.id/index.php/ReTII/article/view/145. Acesso em: 31 may. 2025.