Hutapea, Gerda
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1986
UI - Skripsi Membership
Brooke, J.
London Longmans 1954
Buku Teks
Huxley, Aldous, 1894-1963
The Modern Library, 1923
Buku Teks
Huxley, Aldous, 1894-1963
Bantam Books , 1959
Buku Teks
Huxley, Aldous, 1894-1963
J.M. Dent, 1942
Buku Teks