Sultana, M., & Sultana, D. A. (2018). The role of grammar teaching in English language learning: A study of the higher secondary level in Bangladesh. BRAC University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sultana, Mousumi, و Dr. Asifa Sultana. The Role of Grammar Teaching in English Language Learning: A Study of the Higher Secondary Level in Bangladesh. BRAC University, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sultana, Mousumi, و Dr. Asifa Sultana. The Role of Grammar Teaching in English Language Learning: A Study of the Higher Secondary Level in Bangladesh. BRAC University, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.