BOUAKKAZ , AhlèmeKHEMIS , Rabah2025-07-152025-07-152020http://dspace.univ-skikda.dz:4000/handle/123456789/4972In this paper, we consider a class of second order differential equations with iterative source term. The main results are obtained by virtue of a Krasnoselskii fixed point theorem and some useful properties of a Green’s function which allows us to prove the existence of positive periodic solutions. Finally, an example is included to illustrate the correctness of our results.enArticle