SIDDIQ, Achmad. Problems of Implementation of Productive Waqf in Pesantren. International Conference of Moslem Society, [S. l.], v. 2, p. 246–263, 2018. DOI: 10.24090/icms.2018.1913. Disponível em: https://ejournal.uinsaizu.ac.id/index.php/icms/article/view/1913. Acesso em: 5 jul. 2025.