Zulfi Abdullah; Trengginas Eka Putra Sutantyo; Mahdhivan Syafwan; Ahmad Ripai; Hanifah Azzaura Musyayyadah; Mohamad Nazri Abdul Halif. An Exact Solution of Nonlinear Schrödinger Equation in a Lossy Fiber System Using Direct Solution Method. J. Ilmu Fis. 2022, 15, 13-21.