edited and compiled by Wolodymyr Maksymiw
Longman, 1990
Buku Referensi
Goldstein, Joseph, author
Allen & Unwin, 1952
Buku Teks
Arpornsuwan, Thanet, author
Friedrich-Ebert Stiftung , 1978
Buku Teks
Humphreys, Nick, author
Blackstone Press, 1999
Buku Teks
Kompassindo
Jakarta : Kompassindo, 1994,
Buku Referensi