THISTLETHWAITE, G. Fields of study and development of motivation to seek advanced training. J Educ Psycho. 1962, 53, 53-64
FRASER, BJ. Development of short forms of several classroom environment scales. J Educ Meas. 1982, 19, 221-227
PHILLIPS, M. What makes schools effective? A comparison of the relationships of communitarian climate and academic climate to mathematics achievement and attendance during middle school. Am Educ Res J. 1997, 34, 633-662