PROF. ASMAR YULASTRI, M.PD, PH.D; PROF. GANEFRI, M.PD, PH.D; YUDHA ADITYA FIANDRA, S.PD., M.KOM. Buku Ajar Pengantar Kewirausahaan. [s.l.] : UNP PRESS,2025. Disponível em: http://unppress.unp.ac.id/index.php/unp-press/catalog/book/158. Acesso em: 21 jul. 2026.