KHOZHAYEV MARAT. THE ROLE OF THE NATIONAL SYSTEM OF STANDARDIZATION IN IMPROVING THE QUALITY OF TOURIST SERVICES IN THE REPUBLIC OF KAZAKHSTAN. Interdisciplinary Science Studies, [S. l.], n. 2, 2023. Disponível em: https://ojs.publisher.agency/index.php/ISS/article/view/1383. Acesso em: 2 jul. 2026.