“A SIQRV MATHEMATICAL MODEL ON COVID-19 INVESTIGATING THE COMBINED EFFECT OF VACCINATION AND LOCKDOWN TO CONTROL THE SPREAD OF COVID-19”, IJFANS, vol. 12, no. 1, pp. 2835–2840, Jan. 2023, Accessed: Aug. 25, 2026. [Online]. Available: http://ijfans.org/index.php/Journal/article/view/1968