Ahmad, I. ., H. Khan, G. Rahman, Saddam, G. . Ali, and Rafiullah. “Prevalence of Enteric Fever in the Local Population of Rawalpindi And Islamabad Pakistan”. Abasyn Journal of Life Sciences, vol. 3, no. Issue 2, Dec. 2020, http://ajlifesciences.com/ojs/index.php/ajls/article/view/58.