Priyanto Wibowo
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2007
Buku Teks SO
Franklin, Benjamin
The Spencer Press, 1936
Buku Teks
Maugham, W. Somerset
Fawcett, 1956
Koleksi Publik
Blundell, Nigel
Octopus Books Limited, 1980
Buku Teks SO
Hung, William
Harvard University Press, 1952
Buku Teks SO