Panya Karnphanit. (1985). A study of the implementation of the IPST inguiry-oriented lower secondary science curriculum in Thailand. University of Illinois at Urbana-Champaign.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Panya Karnphanit. A Study of the Implementation of the IPST Inguiry-oriented Lower Secondary Science Curriculum in Thailand. Urbana, Ill.: University of Illinois at Urbana-Champaign, 1985.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Panya Karnphanit. A Study of the Implementation of the IPST Inguiry-oriented Lower Secondary Science Curriculum in Thailand. University of Illinois at Urbana-Champaign, 1985.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.