Abuelyamen, S. H. (2023) “THE HIJIRI CALENDAR AND ITS CONFORMANCE WITH THE GREGORAIN CALENDAR BY MATHEMATICAL CALCULATIONS: 31st May 2022; 07th February 2023; 16th February 2023; 17th February 2023”, MATTER: International Journal of Science and Technology, 9, pp. 01–19. doi: 10.20319/mijst.2023.9.0119.