Muhammad Akbar Herman; Qadir Gassing; Muhammad Shuhufi. The Controversy Of Hisab and Rukyat in Determining the Islamic Calendar in the Modern Era Contemporary Jurisprudence Approach: Kontroversi Hisab Dan Rukyat Dalam Penentuan Kalender Islam Di Era Modern Pendekatan Fikih Kontemporer. Al-Maktabah 2025, 2 (1), 26-39.