<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Penchit Ngernprasertsri. (1990) The study of measles antibody levels in Thai children. Mahidol University,:ม.ป.ท.</APA><Chicago>Penchit Ngernprasertsri. 1990. The study of measles antibody levels in Thai children. ม.ป.ท.:Mahidol University,;</Chicago><MLA>Penchit Ngernprasertsri.  The study of measles antibody levels in Thai children.  ม.ป.ท.:Mahidol University, 1990. Print.</MLA></bibliography></xml>
