- N.p., n.d. Web. 18 Mar. 2015. <http%3A%2F%2Fwww.portapure.com>.
- Short, Kevin. "11 Simple Inventions That Could Change The World." The Huffington Post. TheHuffingtonPost.com, n.d. Web. 18 Mar. 2015. <http://www.huffingtonpost.com/2014/07/15/simple-inventions-change-world_n_5565040.html>.
- "5 Countries Most Threatened by Water Shortages." The Seametrics Blog RSS. N.p., n.d. Web. 18 Mar. 2015. <http://www.seametrics.com/blog/5-countries-most-threatened-by-water-shortages/>.
- "UNICEF Tap Project." UNICEF USA. N.p., n.d. Web. 22 Mar. 2015. <http://www.unicefusa.org/mission/survival/water/tap-project>.