1.
Safira AK, Sa’adah A, Sulvianuri R, Agnesia Y. Analysis of Nonlinear Oscillation Models with External Forcing Using the Multiple Scales Method. RMJ [Internet]. 2026 Apr. 30 [cited 2026 Jun. 13];5(1):79-90. Available from: https://math.ppj.unp.ac.id/index.php/RMJ/article/view/138