UTHMAN, K. Y.; KASSIM, A. L. The Impact of Leadership Styles of Principals and Teachers of Secondary Schools in Kaduna State Nigeria: Using School Environment as a Tool for School Achievement. International Journal of Advances in Management and Economics, [S. l.], 2018. Disponível em: https://managementjournal.info/index.php/IJAME/article/view/105. Acesso em: 16 may. 2024.