Gaya APA

Tope, P. et al (2004). Ekonomi Perdagangan Internasional (Cet.ke-1). Palu: Tadulako University Press.

Gaya MLA

Tope, Patta. et al. "Ekonomi Perdagangan Internasional". Cet.ke-1 Palu: Tadulako University Press, 2004. Textbook.