Abda, S. I., Damayanti, A., & Winarko, E. (2021). Detection of Heart Abnormalities Based On ECG Signal Characteristics using Multilayer Perceptron with Firefly Algorithm-Simulated Annealing. Contemporary Mathematics and Applications (ConMathA), 3(1), 45–55. https://doi.org/10.20473/conmatha.v3i1.26941