Rangkuti, Abdul Haris, Ayuliana Ayuliana, and Muhammad Fahri. 2018. “Improving Image Classification Using Fuzzy Neural Network and Backtracking Algorithm”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 10 (2-3):123-28. https://jtec.utem.edu.my/jtec/article/view/4204.