The COVID-19 Vaccine Preference for Youngsters Using PROMETHEE-II in the IFSS Environment. - Samayan Narayanamoorthy; Subramaniam Pragathi; Thirumalai Nallasivan Parthasarathy; Samayan Kalaiselvan; Joseph Varghese Kureethara; Ranganathan Saraswathy; Poosamani Nithya; Daekook Kang (Symmetry, 2021)