1. School of Business Administration, Shandong Women’s University, Jinan, Shandong, China; Shandong Key Laboratory of New Smart Media, Jinan, Shandong, China
2. Department of Engineering, College of Farabi, University of Tehran, Tehran, Iran
3. Industrial Engineering Department, Islamic Azad University, Najafabad Branch, Isfahan, Iran
4. Department of Industrial Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran