Riad K. Al-Hamido, Qays Hatem Imran, Karem A. Alghurabi, & Taleb Gharibah. (2018). On Neutrosophic Crisp Semi Alpha Closed Sets. Neutrosophic Sets and Systems, 21, 28-35. https://fs.unm.edu/nss8/index.php/111/article/view/299