Srivastav, Manoj Kumar, and Asoke Nath. “A Comprehensive Study on Mathematical Sampling before Testing For COVID-19 Infected Candidates”. International Journal of Computer Sciences and Engineering 8, no. 4 (April 30, 2020): 19–24. Accessed February 2, 2026. https://ijcse.isroset.org/index.php/j/article/view/6018.