Samsuddin, S., I. Iskandar, A. Agusman, M. . Masuwd, and A. Abdurrahman. “The Cadre Development Model of Wahdah Islamiyah Preachers: An Analysis of the Integration of Formal and Non-Formal Education”. Abdurrauf Journal of Islamic Studies, vol. 4, no. 3, Oct. 2025, pp. 237-54, doi:10.58824/arjis.v4i3.448.