Hosseini-Motlagh S, Nouri-Harzvili M, Zirakpourdehkordi R. Two-level supply chain quality improvement through a wholesale price coordination contract on pricing, quality and services. IJIEPR 2019; 30 (3) :287-312 URL: http://ijiepr.iust.ac.ir/article-1-875-en.html
1- School of Industrial Engineering, Iran University of Science and Technology , motlagh@iust.ac.ir 2- School of Industrial Engineering, Iran University of Science and Technology