'મુદ્રણમહર્ષિ' ગુટનબર્ગ વિશે જાણીએ

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