Surang Singhanata. (1989) The study of agglutinin levels against Bordetella pertussis standard strain, vaccine strain and local strain LO21 in infants after complete vaccination. Mahidol University,:ม.ป.ท.Surang Singhanata. 1989. The study of agglutinin levels against Bordetella pertussis standard strain, vaccine strain and local strain LO21 in infants after complete vaccination. ม.ป.ท.:Mahidol University,;Surang Singhanata. The study of agglutinin levels against Bordetella pertussis standard strain, vaccine strain and local strain LO21 in infants after complete vaccination. ม.ป.ท.:Mahidol University, 1989. Print.