Sarkar, R. K., & Hassan, D. M. Q. (2010). A comparison of verbal skill and cognitive performance of children having high educated versus low educated parents in urban and rural context. BRAC University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sarkar, Ratan Kumar, و Dr. M Quamrul Hassan. A Comparison of Verbal Skill and Cognitive Performance of Children Having High Educated Versus Low Educated Parents in Urban and Rural Context. BRAC University, 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sarkar, Ratan Kumar, و Dr. M Quamrul Hassan. A Comparison of Verbal Skill and Cognitive Performance of Children Having High Educated Versus Low Educated Parents in Urban and Rural Context. BRAC University, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.