Dharmaraj. (2005). Granpa's mathematical puzzles (Tamil). Chennai.
Chicago Style (17th ed.) CitationDharmaraj. Granpa's Mathematical Puzzles (Tamil). Narpavi: Chennai, 2005.
MLA (9th ed.) CitationDharmaraj. Granpa's Mathematical Puzzles (Tamil). Chennai, 2005.
Warning: These citations may not always be 100% accurate.