Journal BS. Approximated Methods for Linear Delay Differential Equations Using Weighted Residual Methods: Abdul Khaliqe Ewaid Mizel. Baghdad Sci.J [انترنت]. 10 مارس، 2021 [وثق 18 أغسطس، 2021];4(4):658-65. موجود في: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/851