Vilbar, A. P. (2011). Effects of ESL courseware for sustainable development on grammar proficiency and reading skills of various learners. Philippine Journal for Language Teaching.
Čikaški stil citiranja (17. izdanje)Vilbar, Aurelio P. "Effects of ESL Courseware for Sustainable Development on Grammar Proficiency and Reading Skills of Various Learners." Philippine Journal for Language Teaching 2011.
MLA način citiranja (9. izdanje)Vilbar, Aurelio P. "Effects of ESL Courseware for Sustainable Development on Grammar Proficiency and Reading Skills of Various Learners." Philippine Journal for Language Teaching, 2011.
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