บรรณานุกรม

บรรณานุกรม
https://sites.google.com/site/winnidexaphuh/prawati-hmi-phuh
http://th.wikipedia.org/wiki/%E0%B8%A7%E0%B8%B4%E0%B8%99%E0%B8%99%E0%B8%B5%E0%B9%88-%E0%B9%80%E0%B8%94%E0%B8%AD%E0%B8%B0-%E0%B8%9E%E0%B8%B9%E0%B8%AB%E0%B9%8C