วลัยลักษณ์ อัตธีรวงศ์. 2012. Hybrid model for calculation transportation productivity for ready mixed concrete business. Bangkok:King Mongkut's Institute of Technology Ladkrabang; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/KMITL.res.2012.112
วลัยลักษณ์ อัตธีรวงศ์. (2012) Hybrid model for calculation transportation productivity for ready mixed concrete business. King Mongkut's Institute of Technology Ladkrabang:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/KMITL.res.2012.112
วลัยลักษณ์ อัตธีรวงศ์. Hybrid model for calculation transportation productivity for ready mixed concrete business. Bangkok:King Mongkut's Institute of Technology Ladkrabang, 2012. Print. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/KMITL.res.2012.112
วลัยลักษณ์ อัตธีรวงศ์. (2012) Hybrid model for calculation transportation productivity for ready mixed concrete business. King Mongkut's Institute of Technology Ladkrabang:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/KMITL.res.2012.112