Kannapa Pongponrat. (2017) Volunteer Tourism Development: Perceptions from University Students in Thailand. <i>Silpakorn University Journal of Social Sciences, Humanities, and Arts</i>, <i>17</i>(1), 115-148.Kannapa Pongponrat. "Volunteer Tourism Development: Perceptions from University Students in Thailand". Silpakorn University Journal of Social Sciences, Humanities, and Arts 17 (2017):115-148.Kannapa Pongponrat. Volunteer Tourism Development: Perceptions from University Students in Thailand. Silpakorn University Research and Development Institute:ม.ป.ท. 2017.