SULISTIYOWATI, Wiwik S. Buku Ajar Analisa Kelayakan Usaha. Umsida Press, [S. l.], p. 1–111, 2021. DOI: 10.21070/2019/978-623-6833-92-6. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-6833-92-6. Acesso em: 26 jun. 2025.