Zaman, Qomarus. “KALENDER ISLAM INTERNASIONAL (Analisis Terhadap Sistem Kalender Unifikasi Jamaludin Abd. Raziq)”. Universum 17, no. 1 (June 10, 2023). Accessed November 24, 2024. https://jurnalfuda.iainkediri.ac.id/index.php/universum/article/view/982.