Bachani และ Damodar. (1988) Perspectives and potential of graduate health volunteers in expanded programme on immunization. Mahidol University,:ม.ป.ท.Bachani และ Damodar. 1988. Perspectives and potential of graduate health volunteers in expanded programme on immunization. ม.ป.ท.:Mahidol University,;Bachani และ Damodar. Perspectives and potential of graduate health volunteers in expanded programme on immunization. ม.ป.ท.:Mahidol University, 1988. Print.