[OSGOOD, C. E. (1952) The nature and measurement of meaning. Psychological Bulletin, v. 49(3).10.1037/h0055737]Search in Google Scholar
[OSGOOD, C.E., SUCI, G., & TANNENBAUM, P. (1957) The measurement of meaning.]Search in Google Scholar
[ZAHN, CH.J, HOPPER R., (1985), Measuring Language Attitude: The Speech Evaluation Instrument, Journal of Language and Social Psychology, v. 4 (2).10.1177/0261927X8500400203]Search in Google Scholar
[LIKERT R., (1932) A technique for the measurements of attitudes, Archives of Psychology, v. 140(22).]Search in Google Scholar