Habibi, H., Mesiono and Sitorus, M. 2026. The Main Pathways For Improving Educational Quality In ‎State Islamic Senior High Schools in Deli Serdang Regency: An ‎Analysis of Principals’ Policies, Personality Traits, and ‎Professional Development. JPI: Jurnal Pustaka Indonesia. 6, 1 (Apr. 2026), ‎478–489. DOI:https://doi.org/10.62159/jpi.v6i1.2721.