Periodic Solutions of the Forest Pest System Via Hopf Bifurcation and Averaging Theory. Iraqi Journal of Science, [S. l.], v. 63, n. 12, p. 5496–5509, 2022. DOI: 10.24996/ijs.2022.63.12.35. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/6643.. Acesso em: 13 may. 2024.