Abada ANA, Rahayu PP. NUMERICAL ANALYSIS OF A MATHEMATICAL MODEL OF THE DYNAMICS OF CORRUPTION IN INDONESIA USING A FOURTH-ORDER RUNGE-KUTTA METHOD MODIFIED BY THE GEOMETRIC MEAN . skjam [Internet]. 2026 Apr. 1 [cited 2026 Jul. 9];4(1):87-96. Available from: https://sunankalijaga.org/jurnal/index.php/skjam/article/view/228