• http://docs.google.com/fileview?id=0B-eBl0pnCUP8MGJiYTM4ZGMtMmFhNi00NGQ2LTg2MTEtNTY4Zjk2OTZiMDVk&hl=en&authkey=CM_s2pcM
• http://docs.google.com/fileview?id=0B-eBl0pnCUP8OGU2NjljZmEtNTA4NC00YzlkLTliYjEtMzJlOGFkZmZiYzdm&hl=en&authkey=CP_35qME
• http://docs.google.com/fileview?id=0B-eBl0pnCUP8MGJkODhlZGQtNWU1My00YzM1LTk5MTYtN2MwZjcwZTdhNmRi&hl=en&authkey=CI-c_dAI
• http://docs.google.com/fileview?id=0B-eBl0pnCUP8ZWI0ODM1MjctZDgxNi00NTY1LWFjOGQtYTkyNmQ4ODU3MTE4&hl=en&authkey=CKyEntYE
• http://www.public.iastate.edu/~rhetoric/105H18/proposal/pc.htm
• http://collinsdc.com/blog/2007/04/11/aid-for-the-sleepless/
• http://pinastrends.com/index.php?plugin=ref&page=About%20The%20Philippines&src=philippineflag.gif - gif of phil. flag
• http://www.deped.gov.ph/cpanel/uploads/issuanceImg/DO%20No.%2015,%20s.%201993.pdf
• http://www.deped.gov.ph/deped.asp?i=O&s=1993
• http://www.nscb.gov.ph/activestats/psced/technotes.asp
• http://collinsdc.com/blog/2007/04/11/aid-for-the-sleepless/

http://works.bepress.com/charles_amlaner/

• http://www.britannica.com/EBchecked/topic/340688/light-sleep
• http://emedicine.medscape.com/article/1188226-overview
• http://en.wikipedia.org/wiki/Sleep_deprivation
• http://www.oppapers.com/subjects/sleep-disorders-thesis-statement-page1.html
• http://www.umuc.edu/library/guides/apa.shtml#websites
• http://www.google.com.ph/search?hl=en&q=function+of+sleep&aq=f&aqi=g-c10&aql=&oq=&gs_rfai=
• http://www.google.com.ph/search?q=sleep+physiology+articles&hl=en&ei=H4HmTJjPEM7QcbfQ-eoK&start=10&sa=N
• http://en.wikipedia.org/wiki/Maslow's_hierarchy_of_needs
• http://www.iowastatedaily.com/opinion/article_757bca02-b93c-5a26-84d5-e2cf75ed67f0.html
• http://www.teencollegeeducation.org/2010/02/top-10-things-that-high-school-student.html
• http://lachie.net/maths/percent.html