Gaya APA
Putra, J, D.
(2013).
Inspirasi Mengajar ala Harvard University
.
Yogyakarta:
Diva Press.
Gaya MLA
Putra, Juma, De.
"Inspirasi Mengajar ala Harvard University".
Yogyakarta:
Diva Press,
2013.
Printed Book.