Gaya APA
WINARTA, B, T. (2017).
LIMA RATUS WAYS TO MULTIPLY YOUR PEOPLE'S PRODUCTIVITY .
Jakarta:
PT ELEX MEDIA KOMPUTINDO.
Gaya MLA
WINARTA, BARLIAN, T..
"LIMA RATUS WAYS TO MULTIPLY YOUR PEOPLE'S PRODUCTIVITY".
Jakarta:
PT ELEX MEDIA KOMPUTINDO,
2017.
Text.