eng Science and Education Publishing Turkish Journal of Analysis and Number Theory 2014-10-12 2 5 176 182 10.12691/tjant-2-5-4 TJANT2014254 article Mehmet Zeki SARIKAYA sarikayamz@gmail.com 1 Hüseyin BUDAK 1 Hatice YALDIZ 1 Department of Mathematics, Faculty of Science and Arts, Düzce University, Düzce-TURKEY In this paper, we obtain new identity for function of two variables and apply them to give new Ostrowski type integral inequality for double integrals involving functions whose derivatives are co-ordinates convex function on in R2 with . http://pubs.sciepub.com/tjant/2/5/4/tjant-2-5-4.pdf Ostrowski type inequalities coordinated convex functions H?lder's inequality