Leonardus Pandu Hapsoro, author
2015
UI - Skripsi (Membership)
Willener, Alfred
Pantheon Books, 1970
Buku Teks
Abdullah Muhammad Taqy Arraihan, author
2015
UI - Skripsi (Membership)
White, James E. , author
Wadsworth and Cengage Learning, 2012
Buku Teks
Stavrianos, L.S.
W.H. Freeman and Company, 1976
Buku Teks