ALATTABI SALAH JAMEEL; TCHON LI. THE EFFECT OF COVID 19 ON OIL TRADING. World Economics and Finance Bulletin, [S. l.], v. 13, p. 53-56, 2022. Disponível em: https://scholarexpress.net/index.php/wefb/article/view/1243. Acesso em: 14 may. 2025.