http://www.popsci.com/article/science/why-babies-arabic-speaking-households-learn-some-numbers-faster?dom=fb&src=SOC
http://www.popsci.com/article/science/why-babies-arabic-speaking-households-learn-some-numbers-faster?dom=fb&src=SOC
http://s.nextmedia.com/apple_sub/a.php?i=20131001&sec_id=12187389&s=12187389&a=18444604