RAMADHAN, Ilham Febri. METODE PSEUDOSPEKTRAL CHEBYSHEV PADA APROKSIMASI TURUNAN FUNGSI. Jurnal Matematika UNAND, [S. l.], v. 6, n. 1, p. 50–57, 2017. DOI: 10.25077/jmu.6.1.50-57.2017. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/254. Acesso em: 4 nov. 2026.