Budak, HüseyinSarıkaya, Mehmet Zeki2021-11-292021-11-292021-06-30https://doi.org/10.31801/cfsuasmas.748013http://hdl.handle.net/20.500.12575/76449In this paper, we first obtain Hermite-Hadamard-Fejer inequalities for co-ordinated convex functions in a rectangle from the plane R2. Moreover, we give the some refinement of these obtained Hermite-Hadamard-Fejer inequalities utilizing two mapping. The inequalities obtained in this study provide generalizations of some result given in earlier works.enHermite-Hadamard-Fejer inequalitiesco-ordinated convexintegral inequalitiesArticle7011001162618-6470