Njoseh, Ignatius, and Ebimene J. Mamadu. “SOLVING DELAY DIFFERENTIAL EQUATIONS BY ELZAKI TRANSFORM METHOD”. Boson Journal of Modern Physics 3, no. 1 (February 25, 2017): 214-219. Accessed May 18, 2024. http://www.scitecresearch.com/journals/index.php/bjmp/article/view/1008.