Ramesh, D, B Satyanarayana, and N Srimannarayana. “Direct Product of Finite Interval-Valued Intuitionistic Fuzzy Ideals in BF-Algebra”. International Journal of Engineering & Technology 7, no. 3.34 (September 1, 2018): 631–635. Accessed May 2, 2024. https://sciencepubco.com/index.php/ijet/article/view/19404.