Schramm, Wilbur
Stanford Universuty Press, 1965
Buku Teks
Schramm, Wilbur
Stanford University Press , 1964
Buku Teks SO
Schramm, Wilbur
Stanford Universuty Press, 1967
Buku Teks SO
Vivian, John
Pearson, 2011
Buku Teks
O`hara, Robert C.
Random House , 1961
Buku Teks SO