Sangadji, Etta Mamang, Sopiah Sopiah, and Bagus Shandy Narmaditya. 2021. “Does Leadership Effectiveness Matter for Indonesia Vocational Teacher Performance? The Mediating Role of Work Motivation”. Indonesian Research Journal in Education |IRJE| 5 (2):345-59. https://doi.org/10.22437/irje.v5i2.12541.