Dr. Pattanapong Topark-Ngarm และ Dr. Prinya Chindaprasir. (2017) Utilizing high calcium fly ash in cementless precast concrete construction with emphasis on early mechanical strength. <i>SOCIAL SCIENCE ASIA : Official Journal of National Research Council of Thailand in conjunction with the College of Local Administration Khon Kaen University</i>, <i>3</i>(4), 97-110.Dr. Pattanapong Topark-Ngarm และ Dr. Prinya Chindaprasir. "Utilizing high calcium fly ash in cementless precast concrete construction with emphasis on early mechanical strength". SOCIAL SCIENCE ASIA : Official Journal of National Research Council of Thailand in conjunction with the College of Local Administration Khon Kaen University 3 (2017):97-110.Dr. Pattanapong Topark-Ngarm และ Dr. Prinya Chindaprasir. Utilizing high calcium fly ash in cementless precast concrete construction with emphasis on early mechanical strength. National Research Council of Thailand:ม.ป.ท. 2017.