MAMASIDIQOV, B. Q. o’g’li. Iqtisodiy mаsаlаlаrni yechishdа differensiаl hisob usullаridаn foydаlаnish. Science and Education, [S. l.], v. 4, n. 10, p. 432–435, 2023. Disponível em: https://openscience.uz/index.php/sciedu/article/view/6372. Acesso em: 22 dec. 2024.