ITAST (Iranian Textile Association of Science and Technology) Journal of Textiles and Polymers 2322-5203 6 2 2018 07 01 Cost Comparison of Ring Spun Yarn of China Hui Hong Polyester Fiber and Blended Yarn of Khalis and PSL Polyesters Fiber 77 82 69031 EN Abdul Rauf Shaikh Department of Industrial Engineering, Mehran University of Engineering & Technology, Jamshoro 76062, Pakistan. Rashid Ali Laghari School of Mechatronics Engineering, HerbinInstitute of Technology, Herbin 50001, Republic of China. Iftikhar Ali Sahito Department of Industrial Engineering, Mehran University of Engineering & Technology, Jamshoro 76062, Pakistan Journal Article 2018 09 12 http://www.itast.ir/article_69031_7e60310552ad19c1a56f28440d85fc6f.pdf