Singh, P. K. (2013). Time Management. Maqxford Books.
Lua i Stíl Chicago (17ú heag.)Singh, Pawan Kumar. Time Management. New Delhi: Maqxford Books, 2013.
Lua MLA (9ú heag.)Singh, Pawan Kumar. Time Management. Maqxford Books, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.