Abidin, Zainal, et al. “Exploring Leadership Models in Islamic Education: A Comparative Study of Mono and Dual Leadership Structures in East Java Pesantren”. QALAMUNA: Jurnal Pendidikan, Sosial, Dan Agama, vol. 17, no. 2, Dec. 2025, pp. 1469-82, doi:10.37680/qalamuna.v17i2.7833.