susanti, septria, and Aidil Alfin. “Influence Of Principles And Independence Accountability Preferences On Muzakki Pay Zakat In Amil Institutions Zakat Izi PKPUKota Bukittinggi”. EKONOMIKA SYARIAH : Journal of Economic Studies, vol. 3, no. 1, Oct. 2019, pp. 85-95, doi:10.30983/es.v3i1.1065.