Gaya APA
Morellus, J.
(1999).
Belajar Efektif Ala Jenius (1999)
.
Yogyakarta:
Panji Digital Press.
Gaya MLA
Morellus, John.
"Belajar Efektif Ala Jenius (1999)".
Yogyakarta:
Panji Digital Press,
1999.
Printed Book.