Tài liệu tham khảo WikiPedia: Mangaldan http://gov.pangasinan.com/towns/mangaldan.htm http://residencia.pangasinan.com //tools.wmflabs.org/geohack/geohack.php?language=v... http://www.census.gov.ph/data/pressrelease/2008/pr... http://www.nscb.gov.ph/activestats/psgc/default.as... https://web.archive.org/web/20060105113547/http://...
