Team, Support. “Variational Iteration Method for Solving Eighth-Order Boundary Value Problems: Sanoe Koonprasert, Montri Torvattanabun”. Thai Journal of Mathematics 8, no. 4 (December 31, 2010): 121–129. Accessed December 22, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/241.