Standardizing the Motivational Competencies of Academically Qualified Teachers and Professional Teachers in Nigerian Secondary Schools. Journal of Educational and Social Research, London, U.K., v. 1, n. 3, p. 49, 2011. Disponível em: https://www.richtmann.org/journal/index.php/jesr/article/view/11730.. Acesso em: 18 jul. 2024.