ANAND, Y. K. "Role Efficacy" of Teachers at Polytechnics and its Development:A Survey. Journal of Engineering Education Transformations, [S. l.], p. 16–20, 1995. DOI: 10.16920/jeet/1995/v9i1/114570. Disponível em: https://journaleet.in/index.php/jeet/article/view/889. Acesso em: 17 dec. 2025.