Gaya APA
SEKARAN, U., YON, K, M, [. (2006).
Research methods for business, buku 1 : (Ed. 4).
Jakarta:
Salemba Empat.
Gaya MLA
SEKARAN, Uma., YON, Kwa, Men, [penerj.].
"Research methods for business, buku 1 :".
Ed. 4
Jakarta:
Salemba Empat,
2006.
Buku.