Anusorn Simuen, Chinram, R. and Winita Yonthanthum (2025) “Interval-Valued Picture Fuzzy Ideals of Semigroups”, Science & Technology Asia, 30(1), pp. 117–137. available at: https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/254025 (accessed: 1 April 2025).