A. Rohini, M. Venkatachalam, Dafik, Said Broumi, and Florentin Smarandache. 2020. “ Operations of Single Valued Neutrosophic Coloring”. Neutrosophic Sets and Systems 31 (2020-07-31): 172-78. https://fs.unm.edu/nss8/index.php/111/article/view/440.