Razak, Tajul Rosli, Shukor Sanim Mohd Fauzi, Ray Adderley JM Gining, Mohammad Hafiz Ismail, and Ruhaila Maskat. 2021. “Hierarchical Fuzzy Systems: Interpretability and Complexity”. Indonesian Journal of Electrical Engineering and Informatics (IJEEI) 9 (2): 478-89. https://doi.org/10.52549/ijeei.v9i2.2813.