Emery, Douglas R., author
Prentice-Hall, 1997
Buku Teks
Emery, Douglas R., author
Prentice-Hall, 1997
Buku Teks
Raj, A. Besant C., author
Tata McGraw-Hill, 1988
Buku Teks
Morrow, Vincent, author
Prentice-Hall, 1991
Buku Referensi
Sinulingga, Christin Efrata, author
Universitas Indonesia, 2016
UI - Skripsi (Membership)