Gaya APA
Siahaan, Elisabet. (2012).
Ekonomi Manajerial .
Medan:
Usu Press.
Gaya Chicago
Siahaan, Elisabet.
Ekonomi Manajerial.
Medan:
Usu Press,
2012.
Text.
Gaya MLA
Siahaan, Elisabet.
Ekonomi Manajerial.
Medan:
Usu Press,
2012.
Text.
Gaya Turabian
Siahaan, Elisabet.
Ekonomi Manajerial.
Medan:
Usu Press,
2012.
Print.