Vandenberghe และผู้แต่งคนอื่นๆ. (1997) Participatory action research as a tool to combat fatal delays in presenting children under five with pneumonia to a trained health worker. Chulalongkorn University:ม.ป.ท.Vandenberghe และผู้แต่งคนอื่นๆ. 1997. Participatory action research as a tool to combat fatal delays in presenting children under five with pneumonia to a trained health worker. ม.ป.ท.:Chulalongkorn University;Vandenberghe และผู้แต่งคนอื่นๆ. Participatory action research as a tool to combat fatal delays in presenting children under five with pneumonia to a trained health worker. ม.ป.ท.:Chulalongkorn University, 1997. Print.