APA Style

Kotler, Philip, Purwoko, Herujati. (). . : .

Chicago Style

Kotler, Philip, Purwoko, Herujati. . : , . .

MLA Style

Kotler, Philip, Purwoko, Herujati. . : , . .

Turabian Style

Kotler, Philip, Purwoko, Herujati. . : , . .