Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2004
UI - Tugas Akhir
Gor`kiy, Aleksey Maksimovich
Foreign Languages Publishing, [date of publication not identified]
Buku Teks SO
Marchand, Trevor H. J.
Routledge, 2012
eBooks
Webb, Beatrice Potter, 1858-1943
Penguin books limited, 1938
Buku Teks SO
Richler, Mordecai
Andre Deutsch, 1959
Buku Teks SO