Tandan และ Jay Bahadur. (1991) Knowledge attitude and practice of village health communicators on expanded program of immunization in Nakhon Pathom province, Thailand. Mahidol University,:ม.ป.ท.Tandan และ Jay Bahadur. 1991. Knowledge attitude and practice of village health communicators on expanded program of immunization in Nakhon Pathom province, Thailand. ม.ป.ท.:Mahidol University,;Tandan และ Jay Bahadur. Knowledge attitude and practice of village health communicators on expanded program of immunization in Nakhon Pathom province, Thailand. ม.ป.ท.:Mahidol University, 1991. Print.