Eastwood, J. (1994) Oxford Guide to English Grammar. London: Oxford University Press.

Parkinson, D. and Francis. B (2009) Oxford Idioms Dictionary for Learners of English. London: Oxford University Press.

http://shutterspeech.net/9amazingbrunei/?p=129 retrieved on 24 February, 2014

http://travel.cnn.com/explorations/eat/asia-street-food-cities-612721
retrieved on 24 February, 2014

http://laovoices.com/lao-food/ retrieved on 24 February 2014 retrieved on 24 February, 2014

http://travel.cnn.com/explorations/eat/40-foods-indonesians-cant-live-without-327106 retrieved on 28 April, 2014

http://www.agrip.searca.org/ajad/files/062311113753_OTHMAN_Final.pdf
retrieved on 28 April, 2014

http://www.englishformyjob.com/esl-food-catering-business1.html
retrieved on 24 February, 2014

http://www.asean.org/communities/asean-economic-community/item/asean-cooperation-in-food-agriculture-and-forestry-major-achievements retrieved on 24 February, 2014

http://www.englishclub.com/vocabulary/idioms-food.htm retrieved on 24 February, 2014

http://www.englishclub.com/english-for-work/food-drink-vocabulary.htm
retrieved on 24 February, 2014

http://www.foodandbeverage.biz/images/ASEAN-AFTA_Report_Brochure_Stanton_Emms_Sia_.pdf retrieved on 17 April, 2014

http://www.feednavigator.com/content/view/print/896666 retrieved on 24 February, 2014

http://www.tourismlaos.org/show.php?Cont_ID=9 retrieved on 23 April, 2014

http://writefix.com/?page_id=692 retrieved on 28 April, 2014

http://www.ehow.com/list_7385398_difference-between-charts-graphs.html
retrieved on 3May, 2014