Gumpon Prateepchaikul. 2012. Design of two-stage continuous reactor for producing methyl ester from high free fatty acid mixed crude palm oil. Songkla:Prince of Songkla University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/PSU.res.2012.5
Gumpon Prateepchaikul. (2012) Design of two-stage continuous reactor for producing methyl ester from high free fatty acid mixed crude palm oil (รายงานผลงานวิจัย). Prince of Songkla University:Songkla. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/PSU.res.2012.5
Gumpon Prateepchaikul. Design of two-stage continuous reactor for producing methyl ester from high free fatty acid mixed crude palm oil. Songkla:Prince of Songkla University, 2012. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/PSU.res.2012.5
Gumpon Prateepchaikul. (2012) Design of two-stage continuous reactor for producing methyl ester from high free fatty acid mixed crude palm oil (รายงานผลงานวิจัย). Prince of Songkla University:Songkla. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/PSU.res.2012.5