@BOOK{ Book!D - 103403382,
AUTHOR = "/ Judita Cofman",
TITLE = "What to solve?",
LIBRARY= "كتابخانه مركزی و مركز اسناد دانشگاه شهيد چمران",
SUBJECT = "Problem solving.,Mathematics--Problems, exercises, etc",
URL = "/book/103403382/What-to-solve/"}