WAI, C. K. ., L. K. . CHOON, and R. . IDRIS. “ADAPTIVE TIME-STEPPING FOR RUNGE-KUTTA METHODS FOR ORDINARY DIFFERENTIAL EQUATIONS”. Universiti Malaysia Terengganu Journal of Undergraduate Research, vol. 3, no. 1, Jan. 2021, pp. 25-36, doi:10.46754/umtjur.v3i1.189.