Gaya APA
An-Nawawi, I.
(1990).
The Competitive Advantage of Nations
.
Sulawesi Barat:
Tradisi Ilmu Sdn. Bhd.
Gaya MLA
An-Nawawi, Imam.
"The Competitive Advantage of Nations".
Sulawesi Barat:
Tradisi Ilmu Sdn. Bhd,
1990.
Text.