Durman O, Durman M, Topalova E, Grytsak L, Zhiliaieva O. An economic model to assess the effectiveness of economic cooperation between Ukraine and international non-government organization. JEECAR [Internet]. 2021 Mar. 20 [cited 2024 May 20];8(1):62-80. Available from: https://ieeca.org/journal/index.php/JEECAR/article/view/640