สังฆทิพย์ ฤ.; กาญจนะ ร.; ศรีสวัสดิ์ น. Identifying the Optimal Factors in Mixing of Composite Material between Polypropylene with Nano Rubber by using Design of Experiment (DOE) Technique. Front Eng Innov Res. 2012, 2, 55-62.