Arief, Y. S., and E. Shofiyanti. “Welfare Level Analysis in The Al Ghazali’s Perspective (Case Study: Worker of Pondok Modern Darussalm Gontor Putri Campus 1 and 2)”. Journal of Islamic Economics and Philanthropy, vol. 1, no. 4, May 2019, pp. 306-29, doi:10.21111/jiep.v2i02.3771.