Hague, Douglas C.
Longmans, Green and Co., 1955
Buku Teks
Stonier, Alfred W.
Longman Group Limited, 1980
Buku Teks
Stonier, Alfred W.
Ghallia Indonesia, 1984
Buku Teks
Reynolds, Lloyd G., author
Richard D. Irwin, 1966
Buku Teks
Reynolds, Lloyd G., author
Richard D. Irwin, 1966
Buku Teks