Loehken, Sylvia, author
Gramedia Pustaka Utama, 2022
Buku Teks
Merril, Grayson, editor
D. Van Nostrand Company, 1958
Buku Referensi
Stegner, Wallace
Penguin Books, 1971
Buku Teks
Apt, Krzysztof R., author
Cambridge University Press, 2003
Buku Teks
Van Hentenryck, Pascal, author
MIT Press, 1989
Buku Teks