Pulizzi, Joe. Get content, get customers, c2009: eCIP t.p. (Joe Pulizzi)

Epic content marketing : how to tell a different story, break through the clutter, and win more customers by marketing less, 2014

Joe Pulizzi, sitio web, 03 julio 2020: Joe Pulizzi ( Autor, podcaster, orador de marketing y emprendedor) https://www.joepulizzi.com/