Elwell, Fayette H.
Ginn & Co, 1949
Buku Teks
Muhamad Ramadhan, author
2017
UI - Tugas Akhir
Carlson, Paul A., author
South Western, 1957
Buku Teks
Sheff, Alexander L.
The Blakiston , 1944
Buku Teks
Cousins, Donald, author
English Universities Press , 1955
Buku Teks