Podis, Leonard A.
Scott, foresman and Company3, 1983
Buku Referensi
Buku Teks
Smith, Wiliam F.
Harcourt Brace Jovanovich, Inc., 1983
Buku Teks
Strunk, William
Pearson Education, 2014
Buku Teks
Sheridan, Harriet W.
Harcourt, Brace & World, Inc., 1966
Koleksi Publik