Ehrlich, Eugene, author
McGraw-Hill , 2011
Buku Teks
Crocker, Mary E. Coffman, author
McGraw-Hill, 1990
Buku Teks
Jespersen, Otto, author
George Allen and Unwin, 1933
Buku Teks
Crocker, Mary E. Coffman, author
McGraw-Hill, 1990
Buku Teks
Makkink, H.J., author
Nijgh and Van Ditmar, 1951
Buku Teks