CASIO電卓 - とね@Wiki

http://siv.jp/wifky.cgi?p=%5BFX-502P%5D+Contents

http://cyndi.cocolog-nifty.com/blog/2006/11/fx502p.html

http://fx-602p.krischik.com/index.php/Simulator/HomePage

http://fx-602p.krischik.com/FX-602P.wdgt/main.html

https://play.google.com/store/apps/details?id=net.sourceforge.uiq3.fx602p&feature=apps_topselling_paid

fx-502Pのマニュアル（英語) http://www.voidware.com/manuals/fx502p.pdf

fx-602Pのマニュアル（英語） http://jaist.dl.sourceforge.net/project/uiq3/Documents/FX-602P-en-es.pdf

Casio fx-2200

http://www.epocalc.net/pages/mes_calcs_03.htm

http://www.dentaku-museum.com/calc/calc/2-casio/5-casiofx/casiofx.html

http://www.sharp.co.jp/products/lcd/tech/dentaku/index.html

http://www.kogures.com/hitoshi/history/dentaku/index.html