Purpura, J. E. (1999). Learner strategy use and performance on language tests: A structural equation modeling approach. Cambridge University Press.
Chicago-referens (17:e uppl.)Purpura, James Enos. Learner Strategy Use and Performance on Language Tests: A Structural Equation Modeling Approach. Cambridge, UK: Cambridge University Press, 1999.
MLA-referens (9:e uppl.)Purpura, James Enos. Learner Strategy Use and Performance on Language Tests: A Structural Equation Modeling Approach. Cambridge University Press, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.