Day, Robert A., author
ISI Press , 1979
Buku Teks
Day, Robert A., author
ISI Press, 1983
Buku Teks
Day, Robert A., author
ISI Press, 1979
Buku Referensi
Gastel, Barbara, author
Greenwood, 2016
Buku Teks
Trelease, Sam Farlow, author
The Williams & Wilkins, 1958
Buku Teks