Botting, Douglas
Times-Life Books, 1978
Buku Teks
Botting, Douglas
Harper & Row, 1973
Buku Teks
Lewis, Brenda Ralph, author
PT Elex Media Komputindo, 2017
Buku Teks
Audrey Anastasya Fide, author
Universitas Indonesia, 2016
UI - Tugas Akhir
Stevenson, R. L. (Robert Louis), author
Macmillan, 1970
Buku Teks