Poposka, Vesna Prodanovska. 2016. “Pronunciation Proficiency Level and Problematic Areas of Tertiary Level Students-Learners of English As a Foreign Language from Gotse Delchev University Shtip- Macedonia”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 30 (3):199-208. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/6508.