FLORENTIN SMARANDACHE; MAIKEL Y. LEYVA VÁZQUEZ; MOHAMED ABDEL‑BASSET. Preface - Neutrosophic Sets and Systems, {Special Issue: Neutrosophic and Plithogenic Approaches in Data Science and Multivariate Analysis: Contributions from the IX Ibero-American Biometry Meeting}, Vol. 89, 2025. Neutrosophic Sets and Systems, [S. l.], v. 89, p. 1–6, 2025. Disponível em: https://fs.unm.edu/nss8/index.php/111/article/view/6714.. Acesso em: 30 sep. 2025.