Muhamad Syazwan Faid, M. S. A. Mohd Nawawi, Mohd Hafiz Mohd Saadon, Nazhatulshima Ahmad, and A. Ali @ Mat Zin. “Islamic Historical Review on Middle Age Lunar Crescent Visibility Criterion”. Journal of Al-Tamaddun, vol. 17, no. 1, June 2022, pp. 109-25, doi:10.22452/JAT.vol17no1.9.