Lubis, F.S.R. et al. 2026. Design and Simulation of Harmonic Control for a Rolling Airframe R-Han 122 Surface-to-Surface Missile Using MATLAB–X-Plane Integration. International Journal of Advance Social Sciences and Education (IJASSE). 4, 4 (Aug. 2026), 365–376. DOI:https://doi.org/10.59890/ijasse.v4i4.18.