al ’Alwani, T. J. (1992). The Islamic Lunar Calendar as a Civilizational Imperative: 29 Rabi’ al Awai - 1 Rabi’ al Akhir/8-10 October 1991 Penang, Malaysia. American Journal of Islam and Society, 9(4), 577–583. https://doi.org/10.35632/ajis.v9i4.2546