Updated numbers show PS4 with at least 65 percent of two-console market | Ars Technica
More than 91.6 million PS4 consoles sold globally: Sony - techcoffeehouse.com
God of War Passes 10M in PS4 Sales - Legit Reviews
How many PS5 consoles have been sold? - Android Authority
Sony Sold Over 4.2 Million PlayStation 4 Consoles In 2013 - 1 Million Ahead Of Xbox One Sales
PS4 vs Xbox One vs Switch: Console and Game Sales Numbers - 2019 | Hooked On Tech
Chart: Nintendo Switch Passes PS4, Looks Unlikely to Catch PS2 | Statista
PlayStation 4 - Wikipedia
PS4 outsold Xbox One by more than double, Microsoft says
PS4 Clears 91.6 Million Systems, 876 Million Games Sold - Variety
Estimates Suggest PS4 Has Sold More than Double the Number of Xbox Ones Overall - Power Up Gaming
PS5 vs PS4 Sales Comparison - November 2021
Switch vs PS4 vs Xbox One Global Lifetime Sales - June 2021
Xbox One and PS4 sales numbers don't matter right now (but you don't care) - GameSpot
List of best-selling PlayStation 4 video games - Wikipedia
PS4 vs Xbox One sales show Sony's complete dominance
Sony PlayStation 4 Holiday Sales
Sony unveils translucent PS4 Pro to celebrate 500m PlayStations sold | Eurogamer.net
Here is How Many PS4 Consoles Sony Has Shipped Since Launch
PlayStation Sales Numbers, Revenue & Users (2023)
The end of a console era: Sony has shipped 117m PlayStation 4 consoles - FlatpanelsHD
Solved Popular video games: The following frequency | Chegg.com
