Humeniuk, Iryna, and Mykhailo Humeniuk. 2024. “The Criterion and Level Aspect of the Experimental Research into the Effectiveness of the Methodical System of Teaching Ukrainian Language for Professional Purposes”. Journal of Vasyl Stefanyk Precarpathian National University 11 (1):138-46. https://doi.org/10.15330/jpnu.11.1.138-146.