Muhammad Aslam Malik, Ali Hassan, Said Broumi, and F. Smarandache. “Regular Bipolar Single Valued Neutrosophic Hypergraphs”. Neutrosophic Sets and Systems 13 (December 15, 2016): 84–89. Accessed November 25, 2024. https://fs.unm.edu/nss8/index.php/111/article/view/4197.