Montagu, Mary Wortley
Letters
Knopf, 1992
Buku Teks SO
Williams, Maslyn
In one lifetime
Cheshire, 1970
Buku Teks SO
Demas, J.N.
Excited state lifetime measurements
Academic Press , 1983
Buku Teks SO
Lewis, C.S.
The screwtape letters
The Centenary Press, 1946
Buku Teks SO
Macleod, Janice
Paris letters
Gramedia Pustaka Utama, 2017
Buku Teks SO