HARYADI, M. Angga; AKBAR, Nashr; RIANI, Ririn. Productivity of Zakat Management Organizations (OPZ) in Indonesia Based on Malmquist Productivity Index ". International Journal of Zakat, [S. l.], v. 7, n. 2, p. 48–61, 2022. DOI: 10.37706/ijaz.v7i2.386. Disponível em: https://www.ijaz.baznas.go.id.ijazbaznas.com/index.php/journal/article/view/386. Acesso em: 12 jun. 2026.