Nadvi MJ, Khalid M. Exploring the Historical Significance of the Social Security and Welfare Systems in Islam: The Era of ’Umar ibn al-Khattab. JAT [Internet]. 2023 Jun. 19 [cited 2024 Nov. 22];18(1):59-65. Available from: http://jummec.um.edu.my/index.php/JAT/article/view/32034