Chopra,P.K. (2015). Office organisation & Management. Himalaya Publication.
Lua i Stíl Chicago (17ú heag.)Chopra,P.K. Office Organisation & Management. Mumbai: Himalaya Publication, 2015.
Lua MLA (9ú heag.)Chopra,P.K. Office Organisation & Management. Himalaya Publication, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.