Don Dayananda, e. a. Capital Budgeting, 2002.
Lua i Stíl Chicago (17ú heag.)Don Dayananda, et al. Capital Budgeting, 2002.
Lua MLA (8ú heag.)Don Dayananda, et al. Capital Budgeting, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.