Chavda, k. (2007). Objectives management. ABD.
Lua i Stíl Chicago (17ú heag.)Chavda, k. Objectives Management. jaipur: ABD, 2007.
Lua MLA (9ú heag.)Chavda, k. Objectives Management. ABD, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.