Gaya APA
Sentanu, E. (2009).
Quantum ikhlas book series: the science & miracle of zoa ikhlas .
Jakarta:
PT Elex Media Komputindo.
Gaya MLA
Sentanu, Erbe.
"Quantum ikhlas book series: the science & miracle of zoa ikhlas".
Jakarta:
PT Elex Media Komputindo,
2009.
Text.