Rutegibigeni D, Mutei J, Effungani SM. The Impact of the Leadership Style of the Four Caliphates on the Politics of Islam in Contemporary Time. AMJR [Internet]. 2024 Dec. 5 [cited 2025 Aug. 21];9(2):43-68. Available from: https://journals.spu.ac.ke/index.php/amjr/article/view/407