Psychometric methods
GUILFORD, J.P.
Psychometric methods - 2nd ed. - Sombay : TATA-McGrawhill 1954 - 597 p.
Psychological measurement : educational measurement
519.928 / G83
Psychometric methods - 2nd ed. - Sombay : TATA-McGrawhill 1954 - 597 p.
Psychological measurement : educational measurement
519.928 / G83