SINGH P N. (1993). SUCCESS UNLIMITED: HOW TO REACH THE TOP IN THE CORPORATE WORLD. SUCHANDRA PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)SINGH P N. SUCCESS UNLIMITED: HOW TO REACH THE TOP IN THE CORPORATE WORLD. MUMBAI: SUCHANDRA PUBLICATIONS, 1993.
Lua MLA (9ú heag.)SINGH P N. SUCCESS UNLIMITED: HOW TO REACH THE TOP IN THE CORPORATE WORLD. SUCHANDRA PUBLICATIONS, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.