อุทธา ธ.; อักษรวงศ์ ร. Factors Affecting Stress in Taking the Ordinary National Educational Test of Mathayom Suksa 3 Students of the Schools under the Jurisdiction of Secondary Educational Service Area Office 29. Ubon Ratchathani Journal of Research and Evaluation, [S. l.], v. 5, n. 2, p. 19–28, 2021. Disponível em: https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/251009. Acesso em: 3 oct. 2026.