Pimprapa Pratumwan และ Songsri Soranastaporn. (2015) The study of errors, relationship, and opinions of students and teachers on the English teacher-made tests and the English ordinary national educational test (O-NET). Mahidol University:ม.ป.ท.Pimprapa Pratumwan และ Songsri Soranastaporn. 2015. The study of errors, relationship, and opinions of students and teachers on the English teacher-made tests and the English ordinary national educational test (O-NET). ม.ป.ท.:Mahidol University;Pimprapa Pratumwan และ Songsri Soranastaporn. The study of errors, relationship, and opinions of students and teachers on the English teacher-made tests and the English ordinary national educational test (O-NET). ม.ป.ท.:Mahidol University, 2015. Print.