Elsayed Badr, Shokry Nada, Ashraf ELrokh, Hoda Mostafa. “Neutrosophic Digraph With Generalized Modus Tollens”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 13, no. 03 (November 19, 2022): 895–904. Accessed December 27, 2024. https://turcomat.org/index.php/turkbilmat/article/view/13185.