Mahzabin, Z., & Akhter, M. M. (2014). Piaget's pre operational stage and the role of social and cultural development of a child psychology in Bangladeshi context. BRAC University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mahzabin, Zafrin, و Ms. Mahmud Akhter. Piaget's Pre Operational Stage and the Role of Social and Cultural Development of a Child Psychology in Bangladeshi Context. BRAC University, 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Mahzabin, Zafrin, و Ms. Mahmud Akhter. Piaget's Pre Operational Stage and the Role of Social and Cultural Development of a Child Psychology in Bangladeshi Context. BRAC University, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.