Akrim, Akrim, Universitas Muhammadiyah Sumatera Utara, Indonesia

• IJISH (International Journal of Islamic Studies and Humanities) Vol. 5 No. 1 (2022): April - Articles
  The contribution of Abdul Raouf Al-Sinkaili (d.1693) to Astronomy and Calender (the Study of Philology of book entitled "Risalah fi at-Taqwim"
  Abstract  PDF