Daud, Muhammad, and Hadi Saputra Panggabean. “The Principal’s Leadership Model in Integrating Islamic Values ​​into School Culture at Imelda Vocational School, Medan”. Journal of Social Knowledge Education (JSKE) 6, no. 4 (November 29, 2025): 512-519. Accessed February 8, 2026. https://cahaya-ic.com/index.php/JSKE/article/view/2166.