A’yun, Kurroti. " INOVASI RESTORASI KONSEPSI PADA PENENTUAN AWAL-AKHIR RAMADAN BERBASIS LOGIKA QURANY PERSPEKTIF SAINTIFIK DI PESANTREN." Proceeding of International Conference on Islamic Education (ICIED) [Online], (2022): 1-9. Web. 20 Apr. 2024