Apisit Kullanit และ Nutta Taneepanichskul. (2017) Transportation Barriers on Healthcare Utilization among Elderly Population Living in Mahasarakham Province, Thailand. <i>Journal of Health Research</i>, <i>31</i>(Suppl.2), s233.Apisit Kullanit และ Nutta Taneepanichskul. "Transportation Barriers on Healthcare Utilization among Elderly Population Living in Mahasarakham Province, Thailand". Journal of Health Research 31 (2017):s233.Apisit Kullanit และ Nutta Taneepanichskul. Transportation Barriers on Healthcare Utilization among Elderly Population Living in Mahasarakham Province, Thailand. Chulalongkorn University Press:ม.ป.ท. 2017.