Assawarachan, R., Tantikul, S., Boonlow, B., Arwastprom, U. and Thongkrajang, P. 2021. Development of Chrysanthemum Drying Process for the Sa-Ngo Royal Project Development Center, Chiang Rai Province . Area Based Development Research Journal. 13, 2 (Apr. 2021), 92–105.