Linda van Laren, "Math Class Is Tough", in Girl Culture: An Encyclopedia, ed. Claudia A. Mitchell and Jacqueline Reid-Walsh, Volume 2, Westport, Connecticut / London: Greenwood, 2008, ISBN978-0-313-33910-3, pp. 423–24.
Dawn Herlocher, "Barbie & Friends", 200 Years of Dolls: Identification and Price Guide, 3rd ed., Iola, Wisconsin: Krause, 2005, ISBN9780896891678, p. 81.
Susan A. Nolan and Thomas Heinzen, Statistics for the Behavioral Sciences, 2nd ed., New York: Worth, 2012, ISBN9781429232654, p. 196.
Andrew McClary, "Bad Barbies?", Good Toys, Bad Toys: How Safety, Society, Politics, and Fashion Have Reshaped Children's Playthings, Jefferson, North Carolina / London: McFarland, 2004, ISBN9780786418374, pp. 34–35 and note 18, p. 183, citing Ken Schroeder, "In Brief ... Barbie Doesn't Add Up", The Education Digest 58 (December 1992) 72–75.
