References~~

1. [mountain rose herbs] available at <http://www.mountainroseherbs.com/learn/papaya_leaf.php> Accessed on [1^st November 2009]
   
   
2. Unknown author. [Hog maw] available at <http://en.wikipedia.org/wiki/Hog_maw> Accessed on [1^st November 2009]
   
   
3. Unknown author. [Stomach] available at <http://books.google.com.my/books?id=SiBntk9jGmoC&pg=PA104&lpg=PA104&dq=pig's+stomach&source=bl&ots=qr08nwNx-h&sig=UW4HQaiw1woI9IxZ85lsD4X7gVQ&hl=en&ei=AYXsStHnCI6PkQWw1_SbDw&sa=X&oi=book_result&ct=result&resnum=6&ved=0CBkQ6AEwBTgK#v=onepage&q=pig's%20stomach&f=false> Accessed on [1st November 2009]
   
   
4. [Stomach] available at <http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T9G-40WDTYB-F&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1072185843&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=2944dbce3b9a5a4737ce1565c587f123> Accessed on [2nd November 2009]
   
   
5. [Papain] available at <http://antoine.frostburg.edu/chem/senese/101/consumer/faq/papain-meat-tenderizer.shtml> Accessed on [3rd November 2009]
   
   
6. [Pork Stomach] available at <http://www.penangfaces.chanlilian.net/how-to-clean-a-pigs-maw-stomach/> Accessed on [3rd November 2009]
   
   
7. [Herbal] available at <http://www.herbalist.com/wiki.details/93/category/11/> Accessed on [3rd November 2009]
   
   
8. [Coca-cola] available at <http://www.angelofoz.com/coca_cola_hints/index.htm> Accessed on [3rd November 2009]
   
   
9. [Health] available at <http://healingpastures.com/category/health-basics/> Accessed on [3rd November 2009]
   
   
10. [Coca-cola] available at <http://www.madsci.org/posts/archives/oct98/909181221.Ch.r.html> Accessed on [3rd November 2009]
    
    

Conclusion~~

Among the three methods, the first method is the most efficient which using papaya leaf, corn flour and salt. The time used in washing is the least, improved texture and tenderness.