Tahmasbpour Meikola A. Eight Kinds of Graphs of BCK-algebras Based on Ideal and Dual Ideal. Neutrosophic Sets Syst. [Internet]. 2020 May 2 [cited 2025 Jun. 1];33:01-22. Available from: https://fs.unm.edu/nss8/index.php/111/article/view/179