Gopalakrishnan, R. (2010). When the Penny Drops. Portfolio Penguin.
Lua i Stíl Chicago (17ú heag.)Gopalakrishnan, R. When the Penny Drops. Portfolio Penguin, 2010.
Lua MLA (9ú heag.)Gopalakrishnan, R. When the Penny Drops. Portfolio Penguin, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.