Png, I. (2016). Managerial Economics (5th.). Routledge.
Lua i Stíl Chicago (17ú heag.)Png, Ivan. Managerial Economics. 5th. New York: Routledge, 2016.
Lua MLA (9ú heag.)Png, Ivan. Managerial Economics. 5th. Routledge, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.