Team, Support. “Some Characterizations of Anti-Fuzzy (Generalized) Bi-Ideals of Semigroups: Pongpun Julatha, Manoj Siripitukdet”. Thai Journal of Mathematics 16, no. 2 (August 1, 2018): 335–346. Accessed May 20, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/797.