Ali, Mumtaz, Florentin Smarandache, Muhammad Shabir, and Munazza Naz. “Soft Neutrosophic Bigroup and Soft Neutrosophic N-Group”. Neutrosophic Sets and Systems 2 (September 14, 2020): 55-81. Accessed June 10, 2023. https://fs.unm.edu/NSS2/index.php/111/article/view/259.