EL SAYED, Abdel Salam Awad Khair; HUSSEIN, Asaad Mubarak. -Role of Financial Derivatives in Rationalizing Investment Decisions- Field study on sample of brokerage firms in Khartoum stock of exchange. Journal of Economic, Administrative and Legal Sciences, New Mexico, United States, v. 3, n. 4, p. 20–1, 2019. DOI: 10.26389/AJSRP.A090119. Disponível em: https://ajsrp.ojsexpert.com/index.php/jeals/article/view/864. Acesso em: 20 dec. 2025.