توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Nicdao, R. F., & Koo, G. S. (2014). Positive discipline: Effects on psychological and cognitive engagement and classroom social environment. College of Education, University of the Philippines Diliman.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Nicdao, Rhodora F., و Grace S. Koo. Positive Discipline: Effects on Psychological and Cognitive Engagement and Classroom Social Environment. Quezon City: College of Education, University of the Philippines Diliman, 2014.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Nicdao, Rhodora F., و Grace S. Koo. Positive Discipline: Effects on Psychological and Cognitive Engagement and Classroom Social Environment. College of Education, University of the Philippines Diliman, 2014.