@BOOK{ Book!D - 92015380,
AUTHOR = "Mathematics Student Journal",
TITLE = "Mathematics challenger: selected problems from the mathematics student journal",
LIBRARY= "كتابخانه مركزی و مركز اسناد دانشگاه صنعتی خواجه نصير الدين طوسى",
SUBJECT = "، Mathematics - Problems, exercises, etc",
URL = "/book/92015380/Mathematics-challenger-selected-problems-from-the/"}