Stalling, William, author
Indiana: SAMS, 1990,
Buku Referensi
John Benjamins B.V., 1979
Buku Teks
Ernst Eichler, Gerold Hilty, Heinrich Loffler, Hugo Steger, Ladislav Zgusta
Walter de Gruyter, 1995
Buku Referensi
Seidel, Henry M., author
Mosby , 1993
Buku Teks
Fulbrook, Julian
Mansel, 1978
Buku Teks