Strategic Approach for Optimizing of Zakah Institution Performance: Customer Relationship Management. Al-Iqtishad: Jurnal Ilmu Ekonomi Syariah, [S. l.], v. 9, n. 1, p. 81–94, 2016. DOI: 10.15408/aiq.v9i1.4010. Disponível em: https://journal.uinjkt.ac.id/iqtishad/article/view/4010. Acesso em: 28 jan. 2026.