Maryam, Siti, et al. “PERFORMANCE OF ZAKAT INSTITUTIONS: MODIFICATION OF THE IZN (SURVEY AT NATIONAL BOARD OF ZAKAT AND LAZIS IN KEBUMEN REGENCY)”. TSARWATICA (Islamic Economic, Accounting, and Management Journal), vol. 3, no. 1, Apr. 2022, pp. 1-12, https://ojs.stiesa.ac.id/index.php/tsarwatica/article/view/936.