Niramol Pachinburavan. (1985). Development and validation of an english piacement test for freshman students at Khonkaen University. Washington State University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Niramol Pachinburavan. Development and Validation of an English Piacement Test for Freshman Students at Khonkaen University. Washington: Washington State University, 1985.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Niramol Pachinburavan. Development and Validation of an English Piacement Test for Freshman Students at Khonkaen University. Washington State University, 1985.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.