1.
عبد الكريم حسين ا. Employ the Principal Componants Manner in the Forecasting by Box – Jenkins Models. IQJOSS [Internet]. 2007 Jun. 1 [cited 2025 Sep. 10];7(1):22-33. Available from: https://edusj.uomosul.edu.iq/index.php/stats/article/view/29141