Johnson, Paul, author
Weidenfeld and Nicolson, 1983
Buku Teks
Machatzke, Martin
Rapallo: Propylaen, 1933
Buku Teks
Nirmala Setiawati, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1983
UI - Skripsi (Membership)
Maslov, Yevgeny
Moscow Foreign Languages Publishing House 1960
Buku Teks
by Martin Malia ... [and others]; editor, Richard Pipes
Columbia University , 1961
Buku Teks