Ekal, G. B. ., J. L. C. Vui, K. Ghazali, J. Sulaiman, and M. X. Ming. “Solution of the Porous Medium Equation With Source Terms via 4-Point Newton-Explicit Group MKSOR Based on Wave Variable Transformation”. Journal of Advanced Research Design, vol. 141, no. 1, Aug. 2025, pp. 130-46, doi:10.37934/ard.141.1.130146.