Duni@Josephine, D. (2017). The effects of character strengths learning on students Mathematics achievement, character strengths, classroom engagement and well-being (IR).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Duni@Josephine, Dillah. The Effects of Character Strengths Learning on Students Mathematics Achievement, Character Strengths, Classroom Engagement and Well-being (IR). 2017.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Duni@Josephine, Dillah. The Effects of Character Strengths Learning on Students Mathematics Achievement, Character Strengths, Classroom Engagement and Well-being (IR). 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.