UMAM, Khairul. Eksistensi Ketetapan Majelis Permusyawaratan Rakyat dalam Hierarki Peraturan Perundang-Undangan. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 2, p. 9263–9277, 2023. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/1502. Acesso em: 19 apr. 2026.