Sugassni, R. (2011). The effectiveness of a cooperative learning technique in influencing students' achievement in the English language subject.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sugassni, Ramachandaram. The Effectiveness of a Cooperative Learning Technique in Influencing Students' Achievement in the English Language Subject. 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sugassni, Ramachandaram. The Effectiveness of a Cooperative Learning Technique in Influencing Students' Achievement in the English Language Subject. 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.