On the fourth-order hybrid beta polynomial kernels in kernel density estimation. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 6, n. 1, p. 1631, 2024. DOI: 10.46481/jnsps.2024.1631. Disponível em: https://journal.nsps.org.ng/index.php/jnsps/article/view/1631. Acesso em: 2 apr. 2025.