Gaya APA
ELFIKY, I. et al
(2007).
Terapi NLP (Neuro-Linguistic Progamming) :
(
cet. 2)
.
Jakarta:
Hikmah.
Gaya MLA
ELFIKY, Ibrahim. et al.
"Terapi NLP (Neuro-Linguistic Progamming) :".
cet. 2
Jakarta:
Hikmah,
2007.
Buku.