MAHMUDJONOVA, A. Savdo-sotiq tizimida neyming muammosi va uning xususiyatlari. Science and Education, [S. l.], v. 4, n. 2, p. 1494–1499, 2023. Disponível em: https://openscience.uz/index.php/sciedu/article/view/5245. Acesso em: 23 apr. 2024.