Tài liệu tham khảo WikiPedia: Điểm_45X90 http://www.smh.com.au/world/missing-malaysia-airli... http://www.bbc.com/news/world-asia-26697048 http://www.confluence.org/confluence.php?id=6993 http://www.confluence.org/confluence.php?lat=45&lo... http://www.confluence.org/confluence.php?lat=45&lo... http://mnmuseumofthems.org/45th/Poniatowski.html //tools.wmflabs.org/geohack/geohack.php?language=v... //tools.wmflabs.org/geohack/geohack.php?language=v... //tools.wmflabs.org/geohack/geohack.php?language=v... //tools.wmflabs.org/geohack/geohack.php?language=v...
