FATEMEH RAHIMI BAVARSAD, MASOUD SHAHBAZI. The Effectiveness of the Positive Thinking Training on Academic Optimism and Negative Achievement Emotions in Ninth Grade Female Students of Masjed Soleiman. Annals of the Romanian Society for Cell Biology, [S. l.], p. 19050–19059, 2021. Disponível em: http://www.annalsofrscb.ro/index.php/journal/article/view/8474. Acesso em: 26 aug. 2026.