Hasan, P. P., and E. R. Shauki. “Recommendations for Collection and Development Strategy of Waqf Funds: A Case Study on Waqf Institutions”. Jurnal Ekonomi & Keuangan Islam, vol. 8, no. 1, Feb. 2022, pp. 137-51, doi:10.20885/jeki.vol8.iss1.art10.