Tofiq Muhammed S, Hikmt Ali S, Abdulla Salih ‌. Analysis of the OPEC oil price crisis during the period between the years 1961 - 2019). HUJ [Internet]. 2020 Dec. 30 [cited 2024 Jul. 3];5(4):303-25. Available from: https://huj.uoh.edu.iq/index.php/HUJ/article/view/huj-10355