Refleksi Pemikiran Hamka tentang Metode Mendapatkan Kebahagiaan. Substantia: Jurnal Ilmu-Ilmu Ushuluddin, [S. l.], v. 20, n. 1, p. 17–34, 2018. DOI: 10.22373/substantia.v20i1.3403. Disponível em: https://jurnal.ar-raniry.ac.id/index.php/substantia/article/view/3403. Acesso em: 22 aug. 2025.