Semi-Annual Financial Results Briefing for Fiscal Year Ending March 2012
Nintendo Didn't Expect 3DS Sales to Drop Like This | WIRED
DS Lite vs. PSP: who has the best picture quality? | Engadget
Apple slams PSP, DS at iPhone/iPod conference - GameSpot
Sony PSP Vs Nintendo DS - Review - Team Validus
THE APPLE INVESTOR: Apple Hits New High
Nintendo DS - Wikipedia
Cheat Code Central: DS vs. PSP
3DS vs PSP – VGChartz Gap Charts – October 2018 Update
You Decide: Sony PSP or Nintendo 3DS? | HowStuffWorks
Sony PSP vs. Nintendo DS - IGN
Nintendo DS vs. The Sony PSP - InfiniGEEK
Who won? First-week sales of PS Vita vs. PSP vs. 3DS vs. DS (infographic) | VentureBeat
Why is the PSP less popular than the Nintendo ds? - Quora
The Greatest Handheld Video Games Consoles Ever, Ranked - GAMINGbible
PlayStation Portable - Wikipedia
Nintendo vs Sony: Who's winning the console war in handheld gaming? | IG Bank Switzerland
Analysis: PSP Go To Face 'Slow Death At Retail' In U.S.?
Question of the Week Responses: DS vs PSP Revisited
Nintendo DS vs. The Sony PSP - InfiniGEEK
Games: Nintendo – the winner takes it all – eurotechnology.com
Switch vs DS – VGChartz Gap Charts – October 2017 Update
Semi-Annual Financial Results Briefing for Fiscal Year Ending March 2012
PlayStation Portable | Video Game Sales Wiki | Fandom
PSP and DS sales running close to even in Japan – Destructoid
Report: PSP game sales robust, DS sales amazing | Ars Technica
