[1]
M. Al-Tahan and B. Davvaz, “Refined neutrosophic quadruple (po-)hypergroups and their fundamental group”, Neutrosophic Sets Syst., vol. 27, pp. 138–153, Jun. 2019, Accessed: Mar. 21, 2025. [Online]. Available: https://fs.unm.edu/nss8/index.php/111/article/view/4219