Buku Ajar Teologi Sistematika 2: Doktrin Makhluk Rohani (Malaikat dan Iblis) [Internet]. Yayasan Yuta Pendidikan Cerdas; 2025 [cited 2026 Sep. 23]. Available from: https://publisher.yayasanyutapendidikancerdas.com/index.php/yutapress/catalog/book/32