Withida Patthanaissaranukool และผู้แต่งคนอื่นๆ. (2020) Environmental Health Professionals in Developed Countries. <i>EnvironmentAsia</i>, <i>13</i>(1), 112-123.Withida Patthanaissaranukool และผู้แต่งคนอื่นๆ. "Environmental Health Professionals in Developed Countries". EnvironmentAsia 13 (2020):112-123.Withida Patthanaissaranukool และผู้แต่งคนอื่นๆ. Environmental Health Professionals in Developed Countries. Thai Society of Higher Education Institutes on Environment:ม.ป.ท. 2020.