1. The Eighth Mental Measurement Yearbook;Buros,1978
2. The Meaning and Measurement of Neuroticism and Anxiety;Cattell,1961
3. On Browne's solution for oblique Procrustes rotation;Cramer;Psychometrika,1974
4. Coefficient alpha and the internal structure of tests;Cronbach;Psychometrika,1951
5. Multidimensional aspects of state and trait anxiety: a cross-cultural study of Canadian and Swedish college students;Endler,1965