Arumsari, Melisa, et al. “Inflation Forecasting for East Kalimantan Province Using Hybrid Singular Spectrum Analysis- Autoregressive Integrated Moving Average Model”. Jurnal Matematika, Statistika Dan Komputasi, vol. 18, no. 1, Sept. 2021, pp. 78-92, doi:10.20956/j.v18i1.14284.