Yanis M, Syakdiah H, Rukhaiyah S. THE STRATEGY OF ISLAMIC BOARDING SCHOOL LEADERSHIP IN IMPROVING THE QUALITY OF EDUCATION IN THE ERA OF GLOBAL COMPETITION: A CASE STUDY AT MTsS JABAL NUR. hibrululama [Internet]. 2026 Jun. 29 [cited 2026 Oct. 21];8(1):74-83. Available from: https://www.ejurnal.univamedan.ac.id/index.php/hibrululama/article/view/1394