Revenge of Killer Sudoku 4: 150 Of All New Puzzles (Revenge of Killer Sudoku Puzzle Books): Ape, DJ: 9781441400956: Amazon.com: Books
Mixed Puzzle Activity Book for Adults: Sudoku, Word Search, Mazes, Word Puzzle, Mines Finder And More... (UK Version), Vol2: Edition, Agenda Book: 9798716442658: Amazon.com: Books
Sudoku: Very Easy: 200 very easy puzzles: Djape: 9781548416836: Amazon.com: Books
Perfect Sudoku :100 Medium Sudoku Puzzles with Answers - Compact 6"x9" Easy Carry: Puzzle book: Hewkin, Fabio: 9781540636133: Amazon.com: Books
Hyper Sudoku ○○○○○: 100 Very Hard Puzzles: Ritmeester, Peter: 9781076847942: Amazon.com: Books
BridgeDoku Puzzles: 100 one-player logic puzzles for adults, combining bridge and sudoku: Media, Clarity: 9798633704105: Amazon.com: Books
Sudoku Puzzle Book, 400 Puzzles, 200 MEDIUM and 200 HARD: Improve Your Game With This Two Level Book (Sudoku Puzzle Books Champion Series): Books, Sudoku Puzzle: 9781546770138: Amazon.com: Books