Umirkulov Б. Problems of organizing an audit of costs spent on improving product quality. Economics and Innovative Technologies, [S. l.], v. 10, n. 4, p. 35–42, 2022. DOI: 10.55439/EIT/vol10_iss4/a5. Disponível em: https://iqtisodiyot.tsue.uz/journal/index.php/iit/article/view/52. Acesso em: 4 may. 2026.