Animals in archaeology
edited by A. Houghton Brodrick
Frederick A. Praeger, 1972
 Buku Teks SO
Bittker, Boris I.
Federal estate and gift taxation
Little, Brown & Co., 1990
 Buku Teks
Steel, Danielle
The gift : hadiah terindah
Gramedia Pustaka Utama, 1995
 Buku Teks
Mcnulty, John K.
Federal estate and gift taxation
West Publishing, 1994
 Buku Teks
Steel, Danielle
Gift Hadiah terindah alihbahasa
Jakarta Gramedia Pustaka Utama 1995
 Buku Teks