Gaya APA
BERKOWSKI, G.
(2016).
BI-HOW TO BUOLD A BILLION DOLLAR APP
(
Cet. I)
.
Jakarta:
Gemilang.
Gaya MLA
BERKOWSKI, GEORGE.
"BI-HOW TO BUOLD A BILLION DOLLAR APP".
Cet. I
Jakarta:
Gemilang,
2016.
Text.