Md Aktaruzzaman, Majedul Hoque, Rahamat Ullah, Avijit Saha, Md Nahid Hasan, and Tanzim Amin Borhan. “An Investigation of a Comparative Study Among Different Age Groups about the Acceptance and Concern of Covid-19 Vaccine in Bangladesh”. Pakistan’s Multidisciplinary Journal for Arts & Science, vol. 4, no. 03, Nov. 2023, pp. 27-42, doi:10.5281/zenodo.10199943.