Pimporn Lek-utaiwan. (2010) C8 aromatics extractive distillation study :. King Mongkut's University of Technology Thonburi,:ม.ป.ท.Pimporn Lek-utaiwan. 2010. C8 aromatics extractive distillation study :. ม.ป.ท.:King Mongkut's University of Technology Thonburi,;Pimporn Lek-utaiwan. C8 aromatics extractive distillation study :. ม.ป.ท.:King Mongkut's University of Technology Thonburi, 2010. Print.