Orozco, J. A. (2013). Problem-based learning: Effects on critical and creative thinking skills in biology. College of Education, University of the Philippines Diliman.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Orozco, Jason A. Problem-based Learning: Effects on Critical and Creative Thinking Skills in Biology. Quezon City: College of Education, University of the Philippines Diliman, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Orozco, Jason A. Problem-based Learning: Effects on Critical and Creative Thinking Skills in Biology. College of Education, University of the Philippines Diliman, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.