http://www.jvlnet.com/~liliana/Spanish_Numbers.html

http://www.spanishtown.ca/spanishforkids/numbers.htm

http://spanish.about.com/cs/forbeginners/a/cardinalnum_beg.htm

http://www.deepdiscount.com/Teaching-Systems-Spanish-Module-3-Numbers-and-counting-DVD_stcVVproductId50610545VVviewprod.htm

http://www.learn4good.com/languages/spanish_lessons/zflash/znumbers.htm

http://www.smartphrase.com/Spanish/sp_numbers_voc.shtml

http://hubpages.com/hub/Counting-in-Spanish

http://www.apples4theteacher.com/costa-rica-dot2dot.html

http://www.homeeducationresources.com/topics/SpNumbers.htm

http://www.learn-spanish-faster.com/lessons/numbers-and-counting.html