ABAIDILDA, A. . Comparative analysis of the main R&D indicators in OECD countries and Kazakhstan. Economic series of the Bulletin of L.N. Gumilyov ENU, [S. l.], n. 2, p. 61–70, 2023. Disponível em: https://bulecon.enu.kz/index.php/main/article/view/387. Acesso em: 22 jan. 2026.