Hashemi, M. K. S., & Islam, M. S. (2018). Assessing introduction of prepaid gas meters for domestic users and its viability in Bangladesh: A case of Titas Gas Transmission and Distribution Company Limited. BRAC Univeristy.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hashemi, Muhammad Khaled Saiffullah, و Mohammad Sirajul Islam. Assessing Introduction of Prepaid Gas Meters for Domestic Users and Its Viability in Bangladesh: A Case of Titas Gas Transmission and Distribution Company Limited. BRAC Univeristy, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hashemi, Muhammad Khaled Saiffullah, و Mohammad Sirajul Islam. Assessing Introduction of Prepaid Gas Meters for Domestic Users and Its Viability in Bangladesh: A Case of Titas Gas Transmission and Distribution Company Limited. BRAC Univeristy, 2018.