Jerry, G. et al.(1987).Instructor,s manual the challenge of democracy : government in America / Kenneth Janda, Jeffrey M. Berry, Jerry Goldman (Cet.1).New York:Houghton Mifflin Company.
Gaya MLA
Goldman, Jerry. et al."Instructor,s manual the challenge of democracy : government in America / Kenneth Janda, Jeffrey M. Berry, Jerry Goldman".Cet.1New York:Houghton Mifflin Company,1987.Textbook.