Teck. (2008). Teka-teki Sudoku: Panduan penyelesaian langkah demi langkah. Twin Tree Pub.
Chicago Style (17th ed.) CitationTeck. Teka-teki Sudoku: Panduan Penyelesaian Langkah Demi Langkah. Petaling Jaya: Twin Tree Pub, 2008.
MLA (8th ed.) CitationTeck. Teka-teki Sudoku: Panduan Penyelesaian Langkah Demi Langkah. Twin Tree Pub, 2008.
Warning: These citations may not always be 100% accurate.