Botan Karim Ahmed, Sham Azad Rahim, Bestan Bahaalddin Maaroof and Hindreen Abdullah Taher 2020. Comparison Between ARIMA And Fourier ARIMA Model To Forecast The Demand Of Electricity In Sulaimani Governorate. QALAAI ZANIST JOURNAL. 5, 3 (Sep. 2020), 908–940. DOI:https://doi.org/10.25212/lfu.qzj.5.3.36.