METHODOLOGY TO CALCULATE AND ANALYZE COSTS IN THE PEDIATRIC HOSPITAL OF THE CITY OF HOLGUÍN, CUBA ArticlePupo Ochoa YarimaContemporary Problems of Social Work. Vol. 5. 2019. P.. 15-28
INNOVATION ACTIVITY IN THE RUSSIAN FEDERATION: OBSTACLES TO DEVELOPMENT ArticleLebedeva D.V.Вестник РГГУ. Серия: Экономика. Управление. Право. 2019. P.. 92-104