Ramadhan IF. METODE PSEUDOSPEKTRAL CHEBYSHEV PADA APROKSIMASI TURUNAN FUNGSI. Jurnal Matematika UNAND [Internet]. 2017 Feb. 1 [cited 2026 Nov. 3];6(1):50-7. Available from: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/254