Pornchai Sithisarankul และ Chanthip Intawong. (2015) PRELIMINARY REPORT OF HEALTH EFFECTS AMONG OIL SPILL CLEANUP WORKERS AND VOLUNTEERS, THAILAND, 2013. <i>Journal of Health Research</i>, <i>29</i>(3), 199-203.Pornchai Sithisarankul และ Chanthip Intawong. "PRELIMINARY REPORT OF HEALTH EFFECTS AMONG OIL SPILL CLEANUP WORKERS AND VOLUNTEERS, THAILAND, 2013". Journal of Health Research 29 (2015):199-203.Pornchai Sithisarankul และ Chanthip Intawong. PRELIMINARY REPORT OF HEALTH EFFECTS AMONG OIL SPILL CLEANUP WORKERS AND VOLUNTEERS, THAILAND, 2013. Chulalongkorn Universtiy Press:ม.ป.ท. 2015.