Rahman, Md Mahfujur, Chandra Nath Podder, and Amit Kumar Saha. “Backward Bifurcation Phenomena of Dengue Transmission in the Presence of Re-Infection and Imperfect Vaccine”. GANIT: Journal of Bangladesh Mathematical Society 45, no. 1 (June 23, 2025): 16–31. Accessed September 3, 2025. https://www.banglajol.info/index.php/GANIT/article/view/80857.