Islam, Md. Rasidul, Wenbin Zhao, Zekrullah Qasimi, Mehedi Hasan Sagar, and Hasan Ahmed Joy. 2022. “In Some Selected Districts of Bangladesh During the Covid-19 Pandemic Period, Sanitation and Health Service Facilities”. International Journal of Advanced Engineering Research and Science 9 (7). https://journal-repository.com/index.php/ijaers/article/view/5188.