Riza Asfa, Azzahro Fitri Azadi, and Mahdhivan Syafwan. 2018. “Aproksimasi Variasional Untuk Soliton Onsite Pada Persamaan Schrödinger Nonlinier Diskrit Kubik-Kuintik”. Limits: Journal of Mathematics and Its Applications 15 (2):113-26. https://journal.its.ac.id/index.php/limits/article/view/5379.