Random House, 1993
Buku Teks
Smiley, Donald V.
McGraw-Hill Ryerson, 1980
Buku Teks
Heni Pridia Rukmini Sari, author
Universitas Indonesia, 2007
UI - Skripsi (Membership)
Bethcherman, Lita-Rose
Fitzhenry & Whiteside, 1975
Buku Teks
Morton, Desmond, author
Samuel Stevens, 1977
Buku Teks