AMBARWATI , Rita; SUMARTIK. Buku Ajar Metode Penelitian Manajemen. Umsida Press, [S. l.], p. 1–326, 2023. DOI: 10.21070/2022/978-623-464-048-9. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-464-048-9. Acesso em: 23 jun. 2025.