YASNOLOB, Ilona, 		GORB, Oleg, 		OPARA, Nadiia, 		SHEJKO, Serhii, 		PYSARENKO, Svitlana, 		MYKHAІLOVA, Olena, AND 		MOKIIENKO, Tetyana.
" The Formation of the Efficient System of Ecological Enterprise" <em>Journal of Environmental Management and Tourism</em> [Online], Volume 9 Number 5 (1 January 2019)