Laddawan Promphuk และ Ratana Somrongthong. (2001) Participatory learning : a training program for increasing cervical cancer screening. Chulalongkorn University:ม.ป.ท.Laddawan Promphuk และ Ratana Somrongthong. 2001. Participatory learning : a training program for increasing cervical cancer screening. ม.ป.ท.:Chulalongkorn University;Laddawan Promphuk และ Ratana Somrongthong. Participatory learning : a training program for increasing cervical cancer screening. ม.ป.ท.:Chulalongkorn University, 2001. Print.