Wannana Panuwatsuk. (1988) Detection of salmonella typhi by enzyme immunoassay. Mahidol University,:ม.ป.ท.Wannana Panuwatsuk. 1988. Detection of salmonella typhi by enzyme immunoassay. ม.ป.ท.:Mahidol University,;Wannana Panuwatsuk. Detection of salmonella typhi by enzyme immunoassay. ม.ป.ท.:Mahidol University, 1988. Print.