Jaygita Wikranvanich และ Muenduen Phisalaphong. (2016) REINFORCEMENT OF NATURAL RUBBER WITH COAL FLY ASH AND SYNTHETIC ZEOLITE. Chulalongkorn University:ม.ป.ท.Jaygita Wikranvanich และ Muenduen Phisalaphong. 2016. REINFORCEMENT OF NATURAL RUBBER WITH COAL FLY ASH AND SYNTHETIC ZEOLITE. ม.ป.ท.:Chulalongkorn University;Jaygita Wikranvanich และ Muenduen Phisalaphong. REINFORCEMENT OF NATURAL RUBBER WITH COAL FLY ASH AND SYNTHETIC ZEOLITE. ม.ป.ท.:Chulalongkorn University, 2016. Print.