HAYDAROVA MUHTASARXON ODILJON QIZI; XOLBOYEVA SHOXSANAM ABDUMALIK QIZI. CERTIFICATION, BASIC CONCEPTS AND TERMS FOR CERTIFICATION OF PRODUCTS AND SERVICES. E Conference Zone, [S. l.], p. 8–9, 2022. Disponível em: http://econferencezone.org/index.php/ecz/article/view/1419. Acesso em: 7 nov. 2024.