Team, Support. “Fuzzy Congruences on Strongly π-Inverse Semigroups: Yabing Shi, Zhenji Tian”. Thai Journal of Mathematics 16, no. 2 (August 1, 2018): 541–547. Accessed December 22, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/813.