N. S. Ismail and A. Arifuddin, “Comparison of Dawah Models on Facebook: Wahdah Islamiyah and S. Ahmad Fadl Al-MahdalyComparison of Dawah Models on Facebook: Wahdah Islamiyah and S. Ahmad Fadl Al-Mahdaly”, MCR, vol. 2, no. 1, Apr. 2021.