The impact of the Russian-Ukrainian crisis on the volume of cash flows of oil-exporting countries (in OPEC) A comparative study of the Iraqi Sumo Company. KJEAS [انترنت]. 14 ديسمبر، 2022 [وثق 21 سبتمبر، 2026];14(45). موجود في: https://kjeas.uowasit.edu.iq/index.php/kjeas/article/view/479