Stoner, C. (2006). The adversity challenge. Jaico.
Lua i Stíl Chicago (17ú heag.)Stoner, Charles. The Adversity Challenge. Mumbai: Jaico, 2006.
Lua MLA (9ú heag.)Stoner, Charles. The Adversity Challenge. Jaico, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.