Weitzman, David
Human culture great lives
Charles Seribner's Sond, 1994
 Buku Referensi
Johnson, Marilyn, Author
Diabetes : terapi dan pencegahannya= Sickeningly Sweet / Marilyn Johnson; penerjemah, P.A. Siboro
Indonesia Publishing House, 1998
 Buku Teks
Sargent, Sarah
Lure of the dark
Four Winds Press, 1984
 Buku Teks
Savant, Marilyn Vos
The power of logical thinking: easy lesson in the art of reasoning...and hard facts about its ansence in our lives/Marilyn Vos Savant
New York St. Martin's Griffin 1993,
 Buku Teks
Johnson, Samuel, 1709-1784
Lives of the English poets vol. 1 / Samuel Johnson; Edited by George Birkbeck Hill.
G. Olms, 1968
 Buku Teks