49685598
9781981502998
Productions, Razorsharp is the author of 'Sudoku Calendar 2018 Page a Day: Sudoku Calendar 2018 - Sudoku Page a Day Calendar 2018 Hard Copy Sudoku Puzzle Book for Adults (LARGE PRINT) (Sudoku Calendar Page a Day) (Volume 1)', published 2017 under ISBN 9781981502998 and ISBN 1981502998.
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