Prayitno, T. B. “Karakteristik Soliton Pada Persamaan Schrödinger Nonlinear”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL), vol. 2, no. 1, Oct. 2013, pp. 113-5, https://journal.unj.ac.id/unj/index.php/prosidingsnf/article/view/6133.