ABU SUWAID, Ismail Musleh Saeed. The Fixed (Al-Thabit) and the Variable (Al-Mutaghayir) in Safeguarding the Political System in Islam. Ibn Khaldoun Journal for Studies and Researches, فلسطين, v. 6, n. 5, 2026. DOI: 10.56989/benkj.v6i5.1871. Disponível em: https://www.benkjournal.com/index.php/benkj/article/view/1871. Acesso em: 1 may. 2026.