Duhigg, C. (2012). The Power Of Habit. KPG(Kepustakaan Populer Gramedia).
Lua i Stíl Chicago (17ú heag.)Duhigg, Charles. The Power Of Habit. KPG(Kepustakaan Populer Gramedia), 2012.
Lua MLA (8ú heag.)Duhigg, Charles. The Power Of Habit. KPG(Kepustakaan Populer Gramedia), 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.