Knopper, Helen
Wilde vlier / Helen Knopper
Contact, 1989
Buku Teks
Garner, Helen
Monkey grip / Helen Garner
Penguin Books, 1967.
Buku Teks SO
Tappan, Helen
The paleobiology of plant protists/ Helen Tappan
W H Freeman, 1980
Buku Teks
Duncan, Helen
Kate rice prospector / Helen Duncan
Simon , 1984
Buku Teks SO
Ewald, Helen Rothschild
Writing as process : invention and convention / Helen Rothschild Ewald
Charles E. Merrill Publishing Company, 1983
Buku Teks SO