Abdul Rahim, R. T. ., M. F. Muhammad Zuki, and N. S. . Md Noor. “Perspective Of Gravity Model Towards Halal Export: A Conceptual Study”. Journal of Fatwa Management and Research, vol. 27, no. 2-SE, Nov. 2022, pp. 56-67, doi:10.33102/jfatwa.vol27no2-SE.483.