Galal Ahmed Abu Bakr (2023) “The study of a particular historical event, period, or person”, African Diaspora Journal of Mathematics ISSN: 1539-854X, Multidisciplinary UGC CARE GROUP I, 23(1), pp. 1–12. Available at: https://newjournalzone.in/index.php/ijmfsmr/article/view/40 (Accessed: 4 December 2024).