Awaluddin Faj, Didin Hafidhuddinb, Hendri Tanjung and Budi Handrianto 2023. The Concept of Total Leadership of Islamic Boarding Schools in KH Abdullah Syukri Zarkasyi’s Perspective (Case Study in Modern Islamic Boarding School Darussalam Gontor 1985-2020). Formosa Journal of Sustainable Research. 2, 6 (Jun. 2023), 1417–1430. DOI:https://doi.org/10.55927/fjsr.v2i6.4675.