Averaging Techniques in The Oscillations of Nonlinear Differential Equations With Alternating Coefficients. Albayan Scientific Journal , [S. l.], n. 14, p. 227–217, 2023. DOI: 10.37375/bsj.vi14.1838. Disponível em: https://elc2.su.edu.ly/index.php/bayan/article/view/1838. Acesso em: 8 dec. 2025.