http://www.thaipost.net/sunday/111009/12057
http://bcithailand.com/wizContent.asp?wizConID=34&txtmMenu_ID=7
http://www.safetybio.agri.kps.ku.ac.th/index.php? option=com_content&task=view&id=6946&Itemid=42
http://www.greasetrap.ie/index.php/micro-bio-greasetrap-products
http://www.thaigss.com/biogrease.php
http://www.globaltreats.com/index.php?lay=show&ac=article&Id=538983910&Ntype=3
http://www.stks.or.th/blog/?tag=%E0%B9%84%E0%B8%9A%E0%B9%82%E0%B8%AD%E0%B8%81%E0%B8%A3%E0%B8%B5%E0%B8%AA