Demba, M. A., H. Ramos, W. Watthayu, N. Senu, and F. A. Fawzi. “A TRIGONOMETRICALLY ADAPTED EMBEDDED PAIR OF EXPLICIT RUNGE-KUTTA-NYSTR¨OM METHODS TO SOLVE PERIODIC SYSTEMS”. Bangmod International Journal of Mathematical and Computational Science, vol. 7, Dec. 2021, pp. 14-34, https://bangmodjmcs.com/index.php/bangmodmcs/article/view/25.