FUADA, S.; SALMAN, A. H. Virtual Labs of Analog Oscillator. International Journal of Online and Biomedical Engineering (iJOE), [S. l.], v. 12, n. 08, p. pp. 31–37, 2016. DOI: 10.3991/ijoe.v12i08.5911. Disponível em: https://online-journals.org/index.php/i-joe/article/view/5911. Acesso em: 23 may. 2022.