Shofiyulloh, M., Rahmawati, D., Santosa, H., & Sugara, Z. (2022). Social Support and Leadership Effectiveness: Insights from Pesantren Bahrul Ulum Jombang. Jurnal Pendidikan Islam, 11(2), 153–161. https://doi.org/10.14421/jpi.2022.112.153-161