Haffar, A., E. Le Fur, N. E.- islam Djedaa, et S. Mehibel. Options Trading Strategies For The Price Coverage Of The Algerian Oil Barrel Sahara Blend. Les Cahiers Du CREAD, Vol. 39, náµ’ 2, July 2023, p. 227-55, https://revue.cread.dz/index.php/les-cahiers-du-cread/article/view/1420.