Modeling the Spruce Budworm Population: A Numerical Approach Using Heun and Runge-Kutta Methods. Intv. Ind. J. of. Math. Ed [Internet]. 2025 May 3 [cited 2026 May 31];3(1):54-61. Available from: https://cahaya-ic.com/index.php/IJoME/article/view/1583