Mohd Syakir Mohd Rosdi, Suwandi Simangunsong. KEPEMIMPINAN BERTERASKAN ISLAM SAIDINA UMAR AL-KHATTAB RA. JISED [Internet]. 2021 Sep. 30 [cited 2025 Jan. 18];6(39). Available from: https://academicinspired.com/jised/article/view/1276