Gaya APA
supardi-, . ().
The 7 habits of Highly Effective People ( Kebiasaan Manusia Yg Sngat Efektif) .
London:
Binarupa Aksara.
Gaya MLA
supardi-, .
"The 7 habits of Highly Effective People ( Kebiasaan Manusia Yg Sngat Efektif)".
London:
Binarupa Aksara,
.
Text.