Heidi, V., H., W., L.(1996).Strategic management in a global economy / penyusun, Heidi Vernon Wortzel, Lawrence H. Wortzel (Ed.ke-3).New York:John Wiley n Sons.
Gaya MLA
Vernon-Wortzel, Heidi., Wortzel, Lawrence, H.."Strategic management in a global economy / penyusun, Heidi Vernon Wortzel, Lawrence H. Wortzel".Ed.ke-3New York:John Wiley n Sons,1996.Textbook.