Gaya APA
Ball, D, A. et al (2014).
BIsnis internasional: international business (12st ed).
Jakarta:
Penerbit Salemba Empat.
Gaya MLA
Ball, Donald, A.. et al.
"BIsnis internasional: international business".
12st ed
Jakarta:
Penerbit Salemba Empat,
2014.
Printed Book.