Digital pen (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Digital pen" in English language version.

refsWebsite

Global rank English rank

1books.google.com

3^rd place

3^rd place

books.google.com (Global: 3^rd place; English: 3^rd place)

Shelly, Gary B.; Misty E. Vermaat (2009). Discovering Computers: Fundamentals. Cengage Learning. ISBN 978-0-495-80638-7. Retrieved 3 November 2009.