Das, S.; Mahato, S. K.; Mahato, P. Immunity Shield Protection Mathematical Model of SARS-CoV-2 Virus Outbreak With Emphasis on Impreciseness in Terms of Intuitionistic Fuzziness. JAND 2026, 12 (1), 1-29. https://doi.org/10.5890/JAND.2023.03.001.