Tài liệu tham khảo WikiPedia: PdfTeX http://www.pragma-ade.com/pdftex/thesis.pdf http://www.ctan.org/tex-archive/help/Catalogue/ent... http://dojo.miktex.org/blogs/christian_schenk/arch... http://www.pdftex.org http://tug.org/teTeX/tetex-src/NEWS http://www.tug.org/texlive/doc/texlive-en/live.htm... https://web.archive.org/web/20070907131815/http://... https://web.archive.org/web/20101225102032/http://... https://www.tug.org/svn/pdftex/ https://www.wikidata.org/wiki/Q26863#P1324
