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Habibi H, Mesiono, Sitorus M. 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 [Internet]. 2026Apr.30 [cited 2026Aug.7];6(1):‎478–489. Available from: https://siducat.org/index.php/jpi/article/view/2721