GRAHAM, S. (1997). Effective language learning: Positive strategies foradvanced level language learning. Multilingual Matters.

GRAHAM, Suzanne. Effective Language Learning: Positive Strategies Foradvanced Level Language Learning. Clevedon: Multilingual Matters, 1997.

GRAHAM, Suzanne. Effective Language Learning: Positive Strategies Foradvanced Level Language Learning. Multilingual Matters, 1997.