Anusorn Simuen, R. Chinram, and Winita Yonthanthum. “Interval-Valued Picture Fuzzy Ideals of Semigroups”. Science & Technology Asia, vol. 30, no. 1, Mar. 2025, pp. 117-3, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/254025.