RANJAN , M. Implementation of Instructional Supervision in Secondary School: Approaches, Praspects and Problems. Journal of Science, Technology and Arts Research, [S. l.], v. 1, n. 3, p. 59–67, 2012. Disponível em: https://journals.wgu.edu.et/index.php/star/article/view/31. Acesso em: 23 sep. 2024.