Hasbún Hasbún, L. (2005). The effect of explicit vocabulary teaching on vocabulary acquisition and attitude towards reading. Universidad de Costa Rica.
Čikaški stil citiranja (17. izdanje)Hasbún Hasbún, Leyla. The Effect of Explicit Vocabulary Teaching on Vocabulary Acquisition and Attitude Towards Reading. Universidad de Costa Rica, 2005.
MLA način citiranja (9. izdanje)Hasbún Hasbún, Leyla. The Effect of Explicit Vocabulary Teaching on Vocabulary Acquisition and Attitude Towards Reading. Universidad de Costa Rica, 2005.
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