Nintendo 3DS Reaches 5 Million In Japan, Breaks Record - Siliconera
sales share of consoles in 4th generation onwards, in N. America/Europe/Japan regions (notice how stronger Xbox is in N. America) : r/xbox
The Reasons Why The PSP Was Ahead Of Its Time
Financial Results Briefing for Fiscal Year Ended March 2011
Semi-Annual Financial Results Briefing for Fiscal Year Ending March 2012
PSP lifetime unit sales by region 2022 | Statista
Games: Nintendo – the winner takes it all – eurotechnology.com
Game Consoles – November 2007 NPD Sales Figure Analysis « Blog Archive « DVDGuy's Blog @ Digital Digest
Switch vs DS Sales Comparison – DS Lead Grows May 2020
Sony figures show PSP sales falling - but more sold than you may expect | Technology | The Guardian
Apple slams PSP, DS at iPhone/iPod conference - GameSpot
Nintendo's Numbers: The State Of The Industry
NPD Seventh generation | Video Game Sales Wiki | Fandom
Nintendo's Switch to Success: 20 Years of Nintendo Console Sales
Graph-Age: Worldwide NDS & PSP cumulative monthly sales & shipments by region! | Page 4 | NeoGAF
Who won? First-week sales of PS Vita vs. PSP vs. 3DS vs. DS (infographic) | VentureBeat
PlayStation Portable | Video Game Sales Wiki | Fandom
Looking back at 2009 console sales and ahead to 2010 trends | Ars Technica
Wii, XBox, PS3, Nintendo DS, Gameboy Advance, PSP, iPhone, iPad: global market share and sales comparison | Got Schwartz?
Nintendo DS vs. The Sony PSP - InfiniGEEK
PlayStation Portable - Wikipedia
3DS vs PSP – VGChartz Gap Charts – October 2018 Update
PS Vita being outsold by the PSP in Europe too | eTeknix
The first 2 years: PSP has sold better in the US than PS1, DS, more | Engadget
Exclusive: Sony PSP Versus Nintendo DS - The Sales Showdown
