Kotlovskiy, Andiy, Nataliya Mykytenko, Andriana Onufriv, and Maryana Salamakha. “LANGUAGE PORTFOLIO FOR BUILDING LINGUISTIC COMPETENCE IN ESP SPEAKING IN STUDENTS’ INDEPENDENT WORK”. Advanced Education 7, no. 15 (July 19, 2020): 20–24. Accessed April 28, 2024. https://ae.fl.kpi.ua/article/view/200750.