Gaya APA
punnett, B, J., ricks, D, A.
(1992).
internasional business
(
1)
.
usa:
Wadswaorth publishing company.
Gaya MLA
punnett, Betty, Jane., ricks, David, A..
"internasional business".
1
usa:
Wadswaorth publishing company,
1992.
Text.