@BOOK{ Book!D - 99032934,
AUTHOR = "/ A. Gardiner,Gardiner",
TITLE = "Discovering mathematics",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه تهران",
SUBJECT = "Problem solving,Mathematics -- Problems, exercises, etc",
URL = "/book/99032934/Discovering-mathematics/"}