M. Herreroa
发表
The role of personal information sources on the decision-making process of Costa Rican dairy farmers
C. Solanoa,
H. Leónb,
E. Pérezd,
2003
.
M. Herreroa,
P. K. Thorntona,
M. Herreroa,
2001
.
M. Herreroa,
R. H. Fawcetta,
J. B. Dentb,
2000
.