پديدآور: Berelson, Bernard , 1912- ed
ناشر: Free press
سال نشر: [1966]
1385/4/24
2)
Personal influence; the part played by people in the flow of mass communications
پديدآور: Katz, Elihu , 1926-
ناشر: Free Press
سال نشر: [1955]
1385/4/24
ناشر: Free Press
سال نشر: [1955]
1385/4/24