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criticallytouched.com
Marinaro, Mikelangelo (March 27, 2006). "4x20: The Yoko Factor". Critically Touched Reviews. Archived from the original on October 21, 2013. Retrieved September 8, 2013.
Marinaro, Mikelangelo (March 27, 2006). "4x20: The Yoko Factor". Critically Touched Reviews. Archived from the original on October 21, 2013. Retrieved September 8, 2013.