SIBURIAN, T. A.; SIMATUPANG, N.; CHAIRUNISA, H. Model Development of Principal Performanc Through Empirical Study on Junior High School in Medan Indonesia. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 31, n. 1, p. 248–259, 2017. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/6490. Acesso em: 10 may. 2024.