Richterich, Rene, author
Pergamon Press, 1980
Buku Teks
Tarone, Elaine, author
Oxford University Press, 1991
Buku Teks
Fries, Charles Carpenter, author
University of Michigan Press, 1951
Buku Teks
Oskarsson, Mats, author
Pergamon Press , 1980
Buku Teks
Syarifuddin, author
Absolute Media, 2018
Buku Teks