Gaya APA
Hill, C, W., Udayasankar, C, W, K.
(2012).
International Business
.
Singapura:
Mc Graw Hill.
Gaya MLA
Hill, Charles, W.L., Udayasankar, Chow-Hou, Wee,, Krishna.
"International Business".
Singapura:
Mc Graw Hill,
2012.
.