Asia Publishing, 1968
Buku Teks
Stein, Gabriele
Tubiger Beitrage zur Linguistik, 1973
Buku Teks
Freidel, Frank, author
McGraw-Hill, 1990
Buku Teks
Graves, Robert, author
Macmillan, 1943
Buku Referensi
Spacks, Patricia Meyer, author
Wiley-Blackwell, 2009
Buku Teks