Elsayed Badr, Shokry Nada, Ashraf ELrokh, Hoda Mostafa. “Neutrosophic Digraph With Generalized Modus Tollens”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 13, no. 03, Nov. 2022, pp. 895-04, doi:10.17762/turcomat.v13i03.13185.