Gaya APA

Ball, D, A., French, W, L. (1999). International business: the challenge of global competition 7th ed. (edisi ketujuh). United States of Amerika: McGraw-Hill Irwin.

Gaya MLA

Ball, Donald, A.., French, Wendell, L.. "International business: the challenge of global competition 7th ed.". edisi ketujuh United States of Amerika: McGraw-Hill Irwin, 1999. Manajemen Administrasi D3.