SIREGAR, Raja Lottung. Teori Belajar Perenialisme. Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan, [S. l.], v. 13, n. 2, p. 172–183, 2016. DOI: 10.25299/al-hikmah:jaip.2016.vol13(2).1522. Disponível em: https://journal.uir.ac.id/index.php/alhikmah/article/view/1522. Acesso em: 28 apr. 2024.