ALZAHRANI, D. .Joharah . One or More: Is one Specialization better than two?. Social Science Learning Education Journal, [S. l.], v. 6, n. 03, p. 415–419, 2021. Disponível em: https://www.sslej.in/index.php/sslej/article/view/3462. Acesso em: 27 sep. 2026.