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Amazon.fr - Alexander Popov (swimmer): Swimming (sport), World record progression 50 metres freestyle, World record progression 100 metres freestyle, Swimming at the Summer Olympics - Miller, Frederic P., Vandome, Agnes F., McBrewster, John - Livres
Caeleb Dressel sets world record in 50-meter freestyle at ISL Grand Finale ahead of 2020 Tokyo Olympics - CBSSports.com
List of world records in swimming - Wikipedia
Caeleb Dressel Breaks Down The Speedo Fastskin LZR 50 Free Sub-20 Challenge