Gaya APA
SUHARDI, .
(2013).
The Science of Motivation: Kitab Motivasi
(
1)
.
Jakarta:
PT Elex Media Komputindo.
Gaya MLA
SUHARDI, .
"The Science of Motivation: Kitab Motivasi".
1
Jakarta:
PT Elex Media Komputindo,
2013.
Text.