ns the world up-side-down". searchcowboys.com. April 1, 2009. සම්ප්‍රවේශය April 2, 2010.↑ "TEXTp saves YouTube bandwidth, money". YouTube. April 1, 2010. සම්ප්‍රවේශය April 2, 2010.↑ Richmond, Shane (April 1, 2011). "YouTube goes back to 1911 for April Fools' Day". The Daily Telegraph. London. සම්ප්‍රවේශය April 1, 2011.↑ Owen, Pamela; Keneally, Meghan (April 1, 2012). "Simon Cowell's bromance, the self-driving Nascar and Hungry Hippos for iPad... the best April Fools' gags". The Daily Mail. London. සම්ප්‍රවේශය April 2, 2012.↑ Quan, Kristene (April 1, 2013). "WATCH: YouTube Announces It Will Shut Down". Time.com. සම්ප්‍රවේශය April 26, 2013.↑ YouTube Reveals Its Viral Secrets In April Fools' Day Video Kleinman, Alexis, Huffington Post, April 1 2014. Retrieved April 1, 2014.↑ Tufnell, Nicholas (November 27, 2013). "The rise and fall of YouTube's celebrity pioneers". Wired UK. January 13, 2014 දින මුල් පිටපත වෙතින් සංරක්ෂණය කරන ලදී.↑ Bruno, Antony (February 25, 2007). "YouTube