1. Department of Industrial Engineering, Graduate School of Natural and Applied Sciences, Yildiz Technical Univ., 34349 Besiktas, Istanbul, TR.
2. Department of Industrial Engineering, Faculty of Engineering, Tunceli Univ., 6200 Tunceli, TR.
3. Department of Industrial Engineering, Mechanical Faculty, Yildiz Technical Univ., 34349 Besiktas, Istanbul, TR, (Corresponding author), e-mail: ataskin@yildiz.edu.tr
4. Department of Industrial Engineering, Mechanical Faculty, Yildiz Technical Univ., 34349 Besiktas-Istanbul, TR.