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BIBLIOGRAFI Buku Roger Cooke(1997). Geometric Origami. United State Of America:John Wiley & Sons Inc Soon C. L., Tong S. F. and Lau T.K. (2005). Pre-U Mathematics S paper 2. Selangor: Pearson Malaysia Stan Dolan. (2001). Mathematics Geometry 2. UK: Cambridge University Press. Sue De Pomerai and John Berry. (1998). Mathematics. London : Collins Educational Internet Popup design. http://www.technologystudent.com/designpro/popup1.htm diakses pada 10 Mac 2015 Popup Cards. http://www.popupmailers.co.uk/popup_vfoldcards.php diakses pada 10 Mac 2015. Popup Postcards. http://www.inspirationblog.nl/en/2010/06/inspiring- popup-postcards.html diakses pada 11 Mac 2015
