Priyanka Majumder, Suman Das, Rakhal Das, and Binod Chandra Tripathy. 2021. “Identification of the Most Significant Risk Factor of COVID-19 in Economy Using Cosine Similarity Measure under SVPNS-Environment”. Neutrosophic Sets and Systems 46 (November): 112-27. https://fs.unm.edu/nss8/index.php/111/article/view/4143.