แหล่งที่มา WikiPedia: แผลเก่า http://raremeat.blog/%E0%B9%81%E0%B8%9C%E0%B8%A5%E... http://www.reurnthai.com/index.php?topic=6879.195 http://web.archive.org/web/20080226231044/www.maem... http://web.archive.org/web/20160304094943/www.thai... http://web.archive.org/web/20160306074608/www.thai... http://web.archive.org/web/20180523173738/www.thai... http://www.thairath.co.th/content/edu/207569
