Göksu, A., and G. Elkiliç. “EUROPEAN LANGUAGE PORTFOLIO: IMPROVING PRELIMINARY ENGLISH TEST (PET) READING SCORES”. ANGLISTICUM. Journal of the Association-Institute for English Language and American Studies, vol. 1, no. 1, Dec. 2015, pp. 46-62, https://anglisticum.org.mk/index.php/IJLLIS/article/view/334.