Raroopthip Paiboonkasemsut และ Natcha Thawesaengskulthai. (2017) PLASTIC LUMP DEFECT REDUCTION IN RECYCLED PLASTIC PELLETS MANUFACTURING. Chulalongkorn University:ม.ป.ท.Raroopthip Paiboonkasemsut และ Natcha Thawesaengskulthai. 2017. PLASTIC LUMP DEFECT REDUCTION IN RECYCLED PLASTIC PELLETS MANUFACTURING. ม.ป.ท.:Chulalongkorn University;Raroopthip Paiboonkasemsut และ Natcha Thawesaengskulthai. PLASTIC LUMP DEFECT REDUCTION IN RECYCLED PLASTIC PELLETS MANUFACTURING. ม.ป.ท.:Chulalongkorn University, 2017. Print.