E. ELjaneid, N.H. 2017. Existence and Uniqueness of Solution of Some Boundary Value Problems for Delay Differential Equations. Journal of Advance Research in Mathematics And Statistics (ISSN 2208-2409). 4, 7 (Jul. 2017), 01–06. DOI:https://doi.org/10.53555/nnms.v4i7.538.