By Kroopnick Allan   in International Journal of Mathematical Education in Science and Technology

ISSN:1464-5211|41|6|829-836

Taylor & Francis Ltd‎(2010)‎

Access to resources Favorite 21.50976

By Kroopnick Allan J.   in American Mathematical Monthly

ISSN:1930-0972|121|5|415-415

Mathematical Association of America‎(2014)‎

Access to resources Favorite 17.207808