(1)
Simbolon, E. T.; Siagian, A.; Pakpahan, B. A.; Panjaitan, B.; Samosir, L.; Simatupang, H. How Managerial Skills, Teacher Empowerment, and Teacher Maturity Affect Principal Leadership: A Study in High Schools of North Tapanuli, Indonesia. tijossw 2025, 7, 66-74.