Teacher’s Professional Competencies in Knowledge of Subject Matter at Secondary Level in Southern Districts of Khyber Pakhtunkhwa, Pakistan. Journal of Educational and Social Research, London, U.K., v. 3, n. 2, p. 453, 2013. Disponível em: https://www.richtmann.org/journal/index.php/jesr/article/view/271.. Acesso em: 24 nov. 2024.