Ashwathappa, K. (1999). Production and operation management. Himalaya.
Lua i Stíl Chicago (17ú heag.)Ashwathappa, K. Production and Operation Management. Mumbai: Himalaya, 1999.
Lua MLA (9ú heag.)Ashwathappa, K. Production and Operation Management. Himalaya, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.