Pornpimon Sakda และ Bovan Krourat and Wararat Watthanachanobon. (2021) The development of product design from natural materials. <i>Humanities, Arts and Social Sciences Studies</i>, <i>21</i>(3), 601-608.Pornpimon Sakda และ Bovan Krourat and Wararat Watthanachanobon. "The development of product design from natural materials". Humanities, Arts and Social Sciences Studies 21 (2021):601-608.Pornpimon Sakda และ Bovan Krourat and Wararat Watthanachanobon. The development of product design from natural materials. Silpakorn University Research Innovation and Creativity Administration Office:ม.ป.ท. 2021.