Tirasawasdichai, T., K. . Pookayaporn, and P. . Suriyakul Na Ayudhya. “The Influence of Innovation Usage on Small and Medium Enterprises’ Performance in Sanuk Provincial Group (Sakonnakhon, Nakhonphanom, Mukdahan)”. Sripatum Review of Humanities and Social Sciences, vol. 21, no. 1, Jan. 2021, pp. 122-36, https://so05.tci-thaijo.org/index.php/spurhs/article/view/241529.