Zuhdi, Fadhlan, Rizqi Sari Anggraini, and Rachmiwati Yusuf. 2022. “Rubber Production Projection in Riau Province Using Autoregressive Integrated Moving Average (ARIMA) Approach”. Jurnal Economia 18 (1):40-50. https://doi.org/10.21831/economia.v18i1.36426.