Gaya APA
ALLEN, R, G. et al (2007).
Lima saluran pipa penghasil kekayaan = multiple stream of income and five pipeline for growth rich .
Yogyakarta:
BACA !.
Gaya MLA
ALLEN, R., G.. et al.
"Lima saluran pipa penghasil kekayaan = multiple stream of income and five pipeline for growth rich".
Yogyakarta:
BACA !,
2007.
Buku.