Chanta Wongoutong และ Jirawan Jitthavech. (2016) Response surface methodology using an optimization technique. National Institute of Development Administration:ม.ป.ท.Chanta Wongoutong และ Jirawan Jitthavech. 2016. Response surface methodology using an optimization technique. ม.ป.ท.:National Institute of Development Administration;Chanta Wongoutong และ Jirawan Jitthavech. Response surface methodology using an optimization technique. ม.ป.ท.:National Institute of Development Administration, 2016. Print.