Bratanych, O., S. Skydan, and M. Leonardos. “SELF-DIRECTED LEARNING OF ENGLISH FOR SPECIFIC PURPOSES (BUSINESS ENGLISH) AS POWERFUL PEDADOGICAL TOOL IN THE CONTEXT OF ECONOMIC UNIVERSITY”. Scientific Journal of Polonia University, Vol. 25, no. 6, Dec. 2017, pp. 117-25, doi:10.23856/2512.