Le, Nhat. “CHEBYSHEV PSEUDOSPECTRAL METHOD FOR DUFFING NONLINEAR DIFFERENTIAL EQUATIONS”. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 9, no. 1 (March 13, 2023). Accessed May 7, 2024. http://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/839.