KHANYOT, T.; SRIRAUNGRITH, P.; PRACHUMCHAI, S. THE RESULTS OF UTILIZING A CEFR-BASED ENGLISH LANGUAGE TRAINING PACKAGE TO IMPROVE ENGLISH PROFICIENCY LEVELS FOR 6 TH-GRADE STUDENTS . Journal of MCU Phetchaburi Review , [S. l.], v. 7, n. 1, p. หน้า 224 – 236, 2024. Disponível em: https://so03.tci-thaijo.org/index.php/JPR/article/view/273803. Acesso em: 17 sep. 2026.