Poudyal และผู้แต่งคนอื่นๆ. (1998) A radio program to reduce air pollution in Kathmandu : a health promotion strategy targeting the taxi drivers and taxi owners. Chulalongkorn University:ม.ป.ท.Poudyal และผู้แต่งคนอื่นๆ. 1998. A radio program to reduce air pollution in Kathmandu : a health promotion strategy targeting the taxi drivers and taxi owners. ม.ป.ท.:Chulalongkorn University;Poudyal และผู้แต่งคนอื่นๆ. A radio program to reduce air pollution in Kathmandu : a health promotion strategy targeting the taxi drivers and taxi owners. ม.ป.ท.:Chulalongkorn University, 1998. Print.