Lutfi Muzaqi, author
Universitas Indonesia, 2019
UI - Tesis (Membership)
edited by Joan Davidson and Richard Lloyd
John Wiley & Sons, 1979
Buku Teks
Hammonds, Carsie, 1894-, author
Mcgraw-Hill , 1950
Buku Teks
Larson, Adlowe L., author
Prentice-Hall, 1957
Buku Teks
Moverley, John, author
Harper-Collins, 1986
Buku Teks