SINGH,P.N. (1992). DEVELOPING & MANAGING HUMAN RESOURCES. SUCHANDRA PUB.
Lua i Stíl Chicago (17ú heag.)SINGH,P.N. DEVELOPING & MANAGING HUMAN RESOURCES. BOMBAY: SUCHANDRA PUB, 1992.
Lua MLA (9ú heag.)SINGH,P.N. DEVELOPING & MANAGING HUMAN RESOURCES. SUCHANDRA PUB, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.