Civil Officers' Training Academy (Dhaka, Bangladesh). COTA bulletin: Bi-annual publication of Civil Officers' Training Academy. COTA.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Civil Officers' Training Academy (Dhaka, Bangladesh). COTA Bulletin: Bi-annual Publication of Civil Officers' Training Academy. Dhaka, Bangladesh: COTA.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Civil Officers' Training Academy (Dhaka, Bangladesh). COTA Bulletin: Bi-annual Publication of Civil Officers' Training Academy. COTA.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.