SULISTIYOWATI, Wiwik; ASTUTI, Cindy Cahyaning. Buku Ajar Statistika Dasar. Umsida Press, [S. l.], p. 1–236, 2021. DOI: 10.21070/2017/978-979-3401-73-7. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-979-3401-73-7. Acesso em: 21 jun. 2025.