Santosa, Raden Gunawan, Antonius Rachmat Chrismanto, Yuan Lukito, and Willy Sudiarto Raharjo. “The MAPE Analysis of Arima (p,d,q) on LQ45 Stock Price to Determine Training Data Period”. International Journal of Information Technology and Computer Science Applications 2, no. 3 (December 9, 2024): 182–201. Accessed October 28, 2025. https://ejurnal.jejaringppm.org/index.php/jitcsa/article/view/168.