RUSYDI, F.; LUTFIANA, L. Metode Dakwah Yusuf Ismail Alhadid di GunungKidul. El-Hikmah: Jurnal Ilmu Dakwah dan Komunikasi, [S. l.], v. 9, n. 1, p. 39, 2016. Disponível em: https://jurnal.alhikmah.ac.id/index.php/elhikmah/article/view/70. Acesso em: 16 jan. 2026.