Gillespie, David C., author
Longman, 2003
Buku Teks
Remington, Thomas F., 1948-, author
Pearson Longman, 2012
Buku Teks
Piccard, E.
Editions Victor Attinger, [1963]
Buku Teks
Batalden, Stephen K., author
Cambridge University Press, 2015
Buku Teks
Mongait, Alexander, author
Foreign Languages Publishing House, 1959
Buku Teks