Watchara Yeesoontes และ Aing-on Tunphan. (2019) Creating value-added sisal processing products of the Hupkaphong community, Cha-am district, Phetchaburi provincecommunity, Cha-am district, Phetchaburi province. <i>Journal of Management Science Nakhon Pathom Rajabhat University</i>, <i>6</i>(2), 50-65.Watchara Yeesoontes และ Aing-on Tunphan. "Creating value-added sisal processing products of the Hupkaphong community, Cha-am district, Phetchaburi provincecommunity, Cha-am district, Phetchaburi province". Journal of Management Science Nakhon Pathom Rajabhat University 6 (2019):50-65.Watchara Yeesoontes และ Aing-on Tunphan. Creating value-added sisal processing products of the Hupkaphong community, Cha-am district, Phetchaburi provincecommunity, Cha-am district, Phetchaburi province. Faculty of Management Science Nakhon Pathom Rajabhat University:ม.ป.ท. 2019.