Bangladesh Bureau of Statistics, Statistics & Informatics Division, Ministry of Planning. (2013). Report on survey of selected business service, 2012: Decorator service, recruiting service, security service and cleaning service. Industry & Labour Wing, Bangladesh Bureau of Statistics, Statistics & Informatics Division, Ministry of Planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bangladesh Bureau of Statistics, Statistics & Informatics Division, Ministry of Planning. Report on Survey of Selected Business Service, 2012: Decorator Service, Recruiting Service, Security Service and Cleaning Service. Dhaka: Industry & Labour Wing, Bangladesh Bureau of Statistics, Statistics & Informatics Division, Ministry of Planning, 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bangladesh Bureau of Statistics, Statistics & Informatics Division, Ministry of Planning. Report on Survey of Selected Business Service, 2012: Decorator Service, Recruiting Service, Security Service and Cleaning Service. Industry & Labour Wing, Bangladesh Bureau of Statistics, Statistics & Informatics Division, Ministry of Planning, 2013.