In Sikun. (1978). Comparison of the perceived and preferred goals of constituencies in selected teacher training institutions in Thailand. Pennsylvania State University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)In Sikun. Comparison of the Perceived and Preferred Goals of Constituencies in Selected Teacher Training Institutions in Thailand. University Park, Pa.: Pennsylvania State University, 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)In Sikun. Comparison of the Perceived and Preferred Goals of Constituencies in Selected Teacher Training Institutions in Thailand. Pennsylvania State University, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.