Pensiri, Aratchaphorn, and Dumrong Adunyarittigun. 2019. “Behind the Scores: In Search of the Predictive Validity of O-NET Scores to Academic Achievements of English Major Students”. Journal of Studies in the English Language 14 (2):17-48. https://so04.tci-thaijo.org/index.php/jsel/article/view/203780.