'મુદ્રણમહર્ષિ' ગુટનબર્ગ વિશે જાણીએ

https://www.hrc.utexas.edu/exhibitions/permanent/gutenbergbible/process/

https://www.biography.com/people/johannes-gutenberg-9323828

https://www.britannica.com/biography/Johannes-Gutenberg

Books :

'Gutenberg: How One Man Remade the World with Words' by John Man
'Johann Gutenberg and the Printing Press (Inventions and Discovery)' by Kay Melchisedech Olson