APA
Purpura J. E., . (1999). Learner Strategy Use And Performance On Language Tests: A Structural Equation Modeling Approach. : Cambridge.
Chicago
Purpura James E, . 1999. Learner Strategy Use And Performance On Language Tests: A Structural Equation Modeling Approach. : Cambridge.
Harvard
Purpura J. E., . (1999). Learner Strategy Use And Performance On Language Tests: A Structural Equation Modeling Approach. : Cambridge.
MLA
Purpura James E, . Learner Strategy Use And Performance On Language Tests: A Structural Equation Modeling Approach. : Cambridge. 1999.