Syed Mehmood Hasan, Asma Shaikh, Asma Shabbir, Tahir Naeem, Nadeem Nusrat 2018. Histopathological Diagnosis of Giardia Lamblia Infection on Upper Gastrointestinal Endoscopy in Adult Population of Karachi City. Journal of Peoples University of Medical & Health Sciences Nawabshah. (JPUMHS). 8, 3 (Sep. 2018), 230–233.