Team, S. “Fuzzy Congruences on Strongly π-Inverse Semigroups: Yabing Shi, Zhenji Tian”. Thai Journal of Mathematics, vol. 16, no. 2, Aug. 2018, pp. 541-7, https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/813.