PlayStation 4 sales hit 112.3 million worldwide, up 1.9 million in Q1 | TweakTown
Corporate Management Policy Briefing/ Third Quarter Financial Results Briefing For Fiscal Year Ending March 2013
PSP lifetime unit sales by region 2022 | Statista
3DS vs PSP – VGChartz Gap Charts – March 2017 Update
Exclusive: Sony PSP Versus Nintendo DS - The Sales Showdown
Nintendo Switch total sales have officially surpassed Wii, PlayStation - SlashGear
PSP Sales Are Up Year After Year | by Sohrab Osati | Sony Reconsidered
A Graphic of Overall Persona Game Sales in Japan for January 2017 - Persona Central
PSP & PSV unit sales worldwide 2004-2022 | Statista
Sony sells 70 million PSP units worldwide, still firmly in DS' rearview mirror | Engadget
Nintendo's Switch to Success: 20 Years of Nintendo Console Sales
Monster Hunter Portable 3rd Sees Monstrous Sales - Siliconera
PlayStation Portable - Wikipedia
NPD 2009 sales figures | Video Game Sales Wiki | Fandom
A Graphic of Overall Persona Game Sales in Japan for January 2017 - Persona Central
3DS vs PSP – VGChartz Gap Charts – February 2018 Update
Exclusive: Sony PSP Versus Nintendo DS - The Sales Showdown
Japanese sales figures highlight 3DS' holiday dominance | Pocket Gamer.biz | PGbiz
The latest global console sales list! NS only ranked 13th, first is PS2 | Luju Bar
PlayStation Portable | Video Game Sales Wiki | Fandom
Semi-Annual Financial Results Briefing for Fiscal Year Ending March 2012
Sony PSP serves up more than games
Total software sales for 3DS reach 100 million in Japan
Switch vs PS4 vs Xbox One Global Lifetime Sales - February 2021
