WIDODO, Edi. Buku Ajar Pengantar Mekanika Teknik. Umsida Press, [S. l.], p. 1–133, 2021. DOI: 10.21070/2018/978-602-5914-44-7. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-602-5914-44-7. Acesso em: 24 jun. 2025.