Paweenakarn Phonhan และผู้แต่งคนอื่นๆ. (2016) The Effects of Theme - Based Instruction for Reducing Thai Undergraduate Students' Descriptive Writing Apprehension. <i>Silpakorn University Journal of Social Sciences, Humanities, and Arts</i>, <i>16</i>(2), 73-92.Paweenakarn Phonhan และผู้แต่งคนอื่นๆ. "The Effects of Theme - Based Instruction for Reducing Thai Undergraduate Students' Descriptive Writing Apprehension". Silpakorn University Journal of Social Sciences, Humanities, and Arts 16 (2016):73-92.Paweenakarn Phonhan และผู้แต่งคนอื่นๆ. The Effects of Theme - Based Instruction for Reducing Thai Undergraduate Students' Descriptive Writing Apprehension. Silpakorn University Research and Development Institute:ม.ป.ท. 2016.