Phitisak Boonsai และผู้แต่งคนอื่นๆ. (2025) English writing proficiency and perceptions toward English medium instruction: a case study of Thai grade 12 students. Thammasat University:ม.ป.ท.Phitisak Boonsai และผู้แต่งคนอื่นๆ. 2025. English writing proficiency and perceptions toward English medium instruction: a case study of Thai grade 12 students. ม.ป.ท.:Thammasat University;Phitisak Boonsai และผู้แต่งคนอื่นๆ. English writing proficiency and perceptions toward English medium instruction: a case study of Thai grade 12 students. ม.ป.ท.:Thammasat University, 2025. Print.