Comparison between DS and PSP in Japan | Download Table
Who won? First-week sales of PS Vita vs. PSP vs. 3DS vs. DS (infographic) | VentureBeat
You Decide: Sony PSP or Nintendo 3DS? | HowStuffWorks
The first 2 years: PSP has sold better in the US than PS1, DS, more | Engadget
sales share of consoles in 4th generation onwards, in N. America/Europe/Japan regions (notice how stronger Xbox is in N. America) : r/xbox
PS4 vs DS – VGChartz Gap Charts – June 2019 Update
Sony PSP vs. Nintendo DS - IGN
Exclusive: Sony PSP Versus Nintendo DS - The Sales Showdown
3DS vs PSP – VGChartz Gap Charts – October 2018 Update
The Reasons Why The PSP Was Ahead Of Its Time
Wii, XBox, PS3, Nintendo DS, Gameboy Advance, PSP, iPhone, iPad: global market share and sales comparison | Got Schwartz?
PS Vita being outsold by the PSP in Europe too | eTeknix
PlayStation Portable | Video Game Sales Wiki | Fandom
Nintendo's Switch to Success: 20 Years of Nintendo Console Sales
PS Vita vs 3DS. Is The 3DS Winning The Handheld War? - Wololo.net
Switch vs DS Sales Comparison – DS Lead Grows May 2020
Games: Nintendo – the winner takes it all – eurotechnology.com
Semi-Annual Financial Results Briefing for Fiscal Year Ending March 2012
Sony figures show PSP sales falling - but more sold than you may expect | Technology | The Guardian
Nintendo 3DS Reaches 5 Million In Japan, Breaks Record - Siliconera
Weekly Japanese console chart: PSP sales rocket in tandem with new game | The Independent | The Independent
Analysis: PSP Go To Face 'Slow Death At Retail' In U.S.?
Financial Results Briefing for Fiscal Year Ended March 2011
Looking back at 2009 console sales and ahead to 2010 trends | Ars Technica
