Athakorn Kengpol และผู้แต่งคนอื่นๆ. (2013) Process improvement for the reduction of carbon-dioxide lost in a company case study in carbonate soft drink manufacturing. <i>KKU Engineering Journal</i>, <i>40</i>(4), 593-603.Athakorn Kengpol และผู้แต่งคนอื่นๆ. "Process improvement for the reduction of carbon-dioxide lost in a company case study in carbonate soft drink manufacturing". KKU Engineering Journal 40 (2013):593-603.Athakorn Kengpol และผู้แต่งคนอื่นๆ. Process improvement for the reduction of carbon-dioxide lost in a company case study in carbonate soft drink manufacturing. Faculty of Engineering, Khon Kaen Univeristy:ม.ป.ท. 2013.