Gaya APA
Tulus, R. et al
(2017).
Credit Union koperasi : how to grow and sustain
.
Jakarta:
Elex Media Komputindo.
Gaya MLA
Tulus, Robby. et al.
"Credit Union koperasi : how to grow and sustain".
Jakarta:
Elex Media Komputindo,
2017.
Text.