Khayati, S. “Keislaman Negeri Muslim (Kontestasi Dan Konsep Negara Agama Perspektof Gus Sholah Dan Gus Dur)”. Proceedings of Annual Conference for Muslim Scholars, Vol. 3, no. 1, Nov. 2019, pp. 905-14, http://proceedings.kopertais4.or.id/index.php/ancoms/article/view/305.