Christie, Agatha, 1890-1976
Gramedia Pustaka Utama, 2018
Buku Teks
Parker, R.A.C.
Weidenfeld and Nicolson, 1969
Buku Teks
Cambridge University Press, 1994
eBooks
Hall, Ivan Parker.
Harvard University Press, 1973
Buku Teks SO
Nelkon, Michael
Heinemann , 1995
Buku Teks