Bharatha, K., R. Rangarajan, and C.J. Neethu. “Solitary Wave Solutions of the Coupled Kawahara Equation”. Bulletin of the Karaganda University. Mathematics Series 117, no. 1 (March 29, 2025): 63–70. Accessed July 8, 2025. https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/966.