Hasan Maksum, Wawan Purwanto, Wagino, Rahmat Desman Koto, Defelinu Harefa, Desman Telaumbanua, Sabar Jaya Zalukhu, & Exaudi Ziliwu. (2025). Analisis Motor Bakar. UNP PRESS. http://unppress.unp.ac.id/index.php/unp-press/catalog/book/188