Patravadee Vongsumedh. (2559) The development of game prototype as an educational supplementary tool to enhance student's English skill: a case study of grade 1 to grade 3 students. <i>Journal of Thai Interdisciplinary Research</i>, <i>Vol.11</i>(No.3), 16.Patravadee Vongsumedh. "The development of game prototype as an educational supplementary tool to enhance student's English skill: a case study of grade 1 to grade 3 students". Journal of Thai Interdisciplinary Research Vol.11 (2559):16.Patravadee Vongsumedh. The development of game prototype as an educational supplementary tool to enhance student's English skill: a case study of grade 1 to grade 3 students. Nakhon Pathom Rajabhat University:ม.ป.ท. 2559.