“Using the Box-Jenkins methodology To analyze and forecast the general trend of the ratio of non-performing loans to total loans (An applied study on private banks in the Syrian Arab Republic) For the period 2009-2018” (2021) Damascus University Journal for the economic and Political sciences, 37(3). Available at: https://journal.damascusuniversity.edu.sy/index.php/ecoj/article/view/1530 (Accessed: 18 June 2026).