Gaya APA
Krishnamurti, ., Istoto, .
(2012).
NLP ala Backpacker
.
Yogyakarta:
Pohon Cahaya.
Gaya MLA
Krishnamurti, ., Istoto, .
"NLP ala Backpacker".
Yogyakarta:
Pohon Cahaya,
2012.
Text.