Gaya APA
Rubino, J. et al
(2008).
15 Secrets Every Network Marketer Must Know
.
Surabaya:
Menuju Insan Cemerlang.
Gaya MLA
Rubino, Joe. et al.
"15 Secrets Every Network Marketer Must Know".
Surabaya:
Menuju Insan Cemerlang,
2008.
.