Pongchit Chitapong. (2005). A grid and group explanation of teachers' attitudes toward in-service professional development practices in selected schools in Thailand. Oklahoma State University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Pongchit Chitapong. A Grid and Group Explanation of Teachers' Attitudes Toward In-service Professional Development Practices in Selected Schools in Thailand. Stillwater, OK: Oklahoma State University, 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Pongchit Chitapong. A Grid and Group Explanation of Teachers' Attitudes Toward In-service Professional Development Practices in Selected Schools in Thailand. Oklahoma State University, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.