Lecture Note on Statistical analysis of questionnaires with R and Stata
用R和Stata做问卷调查统计分析教学讲义笔记（英文），有丰富的案例与实操

Textbook:Statistical analysis of questionnaires : A unified approach based on R and Stata

Author(s): Bacci, Silvia; Bartolucci, Francesco; Gnaldi, Michela
Publisher: Chapman & Hall/CRC, Year: 2015
Bacci, Silvia_ Bartolucci, Francesco_ Gnaldi, Michela - Statistical analysis of questionnaires _ A unified approach based on R and Stata-Chapma