Wahran Shaker, Mohammad Sabawi. A Posteriori Error Analysis of the FEM Solution for Generic Linear Second-Order ODEs. Acad. Sci. J. [Internet]. 2024 Oct. 1 [cited 2024 Nov. 21];2(4):198-206. Available from: https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/576