Rahayu, Sri, Sukestiyarno Sukestiyarno, and Putriaji Hendikawati. “Peramalan Inflasi Di Demak Menggunakan Metode ARIMA Berbantuan Software R Dan MINITAB”. PRISMA, Prosiding Seminar Nasional Matematika 1 (February 1, 2018): 745-754. Accessed October 31, 2020. https://journal.unnes.ac.id/sju/index.php/prisma/article/view/20356.