ALI HAMDAN; SAIFUDDIN; JAENUDIN, M. Analysis Of Donor Satisfaction Toward The Services Of An Infaq Management Institution Using Importance Performance Analysis And Customer Satisfaction Index Methods. ICO EDUSHA, [S. l.], v. 6, n. 1, p. 8–28, 2025. Disponível em: https://prosiding.stainim.ac.id/index.php/prd/article/view/587. Acesso em: 8 dec. 2025.