Wecker, Helene, author
Gramedia Pustaka Utama, 2015
Buku Teks
Karchmar, Irving, author
Kayla Pustaka, 2009
Buku Teks
Collins, Harry, author
Cambridge University Press , 1993
Buku Teks
d'Estaing, Valery Giscard, author
Yayasan Pustaka Obor Indonesia, 2015
Buku Teks
Lewis, C.S., author
Gramedia Pustaka Utama, 2006
Buku Teks