Harper Collins Publishers, 1996
Buku Teks
Hobbs, Lisa
McGraw-Hill, 1967
Buku Teks
Gourou, Pierre
Longmans, Green and Co., 1954
Buku Teks
Hesty Ayuningtyas, author
2014
UI - Skripsi (Membership)
Gorki, Maxim, author
T. Werner Laurie, [Date of publication not identified]
Buku Teks