Nurnadiyah Syuhada, and Ayu Purwati. 2024. “Feasibility Study of the Rooftop of the Research Center Building at the State Islamic University of Mataram As a Location for Rukyatul Hilal ”. AL - AFAQ : Jurnal Ilmu Falak Dan Astronomi 6 (1):119-36. https://doi.org/10.20414/afaq.v6i1.10495.