N. S. Shalla, “METHOD OF DETERMINING THE BEGINNING OF THE LUNAR MONTH: (Study of the Determination of 1 Shawwal by the Naqsyabandiyah Order in Tanah Merah, Gunung Meriah, Aceh Singkil District)”, KUJOFA, vol. 3, no. 1, pp. 65–87, Aug. 2024.