J.B. Rola, C.L.C.S. Romana, L.S. Feliscuzo, I.F.M. Lopez, C.N. Rola "A Comparative Analysis of ARIMA and Feed-Forward Neural Network Prognostic Model for Bull Services", Advances in Science, Technology and Engineering Systems Journal, vol. 5, no. 2, pp. 411-418 (2020).