APA Citation

Keow, J. H. (2006). Think out of the block with sudoku: Solving sudoku with "KHS formula 3 plus 2". Malaysia: KHS consultancy and training.

Chicago Style Citation

Keow, Jeff H.S. Think Out of the Block With Sudoku: Solving Sudoku With "KHS Formula 3 Plus 2". Malaysia: KHS consultancy and training, 2006.

MLA Citation

Keow, Jeff H.S. Think Out of the Block With Sudoku: Solving Sudoku With "KHS Formula 3 Plus 2". Malaysia: KHS consultancy and training, 2006.

Warning: These citations may not always be 100% accurate.