Armstrong, Karen, author
Serambi , 2001
Buku Referensi
Armstrong, Karen, author
Doubleday, 1991
Buku Teks
Mahajan, Rahul, author
Serambi Ilmu Semesta, 2002
Buku Teks
Amstrong, Karen, author
Serambi Ilmu Semesta, 2004
Buku Teks
Hillenbrand, Carole, author
Serambi, 2005
Buku Teks