文
论文分享
演练场
杂货铺
论文推荐
字
编辑器下载
登录
注册
Robert L. Armstrong
发表
A question about incompleteness
Robert L. Armstrong, 1976, Notre Dame J. Formal Log..
The Midpoint on a Five-Point Likert-Type Scale
Robert L. Armstrong, R. Armstrong, 1987 .