Rose, Jerry D.
State University College, 1980
Buku Teks
Yuliana, author
Grasindo, 2002
Buku Teks
Peters, Herman Jacob, 1917-, author
Macmillan, 1963
Buku Teks
Suarr, Richard W.
Brown and Benchmark, 1996
Buku Teks
Cunningham, William H., author
South-Western, 1984
Buku Teks