Kamolova Muxlisa Khudoyberdiyevna, and Soliev Muzaffar Furkat o`g`li. 2022. “Main Requirements of the O’zDSt ISO\IEC Standard 17021:2009”. Texas Journal of Engineering and Technology 8 (May):4-9. https://zienjournals.com/index.php/tjet/article/view/1530.