Using Semi-Parametric Approach to Estimate Amounts of Entering Water in Degla’s River Model as a Class of Seasonal Integrated Fractional Processes. Al-Rafidain J Sci [Internet]. 2015 Nov. 19 [cited 2025 Oct. 4];36(2):44-61. Available from: https://jrucs.iq/index.php/JAUCS/article/view/250