The SG-1000 and Sega Master System: A Comprehensive Look at the History and Technology of Sega's 8-bit Systems: Decamp, Robert B.: 9781518740206: Amazon.com: Books
File:Sega-SG-1000-MkII-Console-FL.jpg - Wikipedia
Sega SG-1000 - MSX Wiki
SEGA SG-1000 Console System Computer Video Game w/Box Vintage Rare Retro | eBay