http://store.ilmquest.org/osc/index.php?cPath=32_43

http://www.thelightpublishing.com/book.php?id=285

http://www.muslimhands.org/resources/zakatcalc.php

 http://www.islamic-paths.org/Home/English/Discover/Pillars/Sawm_Main.htm 

http://www.faizani.com/articles/five_pillar_of_islam.html

http://www.aswatalislam.net/