F. Koen
发表
R. Young,
A. Becker,
F. Koen,
1968
.
F. Koen,
1976,
Journal of Medical Education.
F. Koen,
1962
.
F. Koen,
1971,
Canadian journal of psychology.
Frank Koen,
R. Young,
F. Koen,
1973
.
F. Koen,
1967
.
Frank Koen,
F. Koen,
1969
.