Ladislao José Biro invented a “miraculous” pen and changed the way we write - Vox
The Incredible Ball Point Pen: A Comprehensive History & Price Guide (A Schiffer Book for Collectors): Gostony, Henry, Schneider, Stuart L.: 9780764304378: Amazon.com: Books
The cheap pen that changed writing forever - BBC Future
History of Ballpoint Pens – Who Invented Ballpoint Pen?
Ballpoint pen history on Behance
HISTORY: The modern ball point pen was invented in 1938 by the Argentine-Hungarian journalist In the 1930s Bíró was working as the editor of a small newspaper. - ppt download