URSULASARI, Yuan; 						HASAN, Moh..
 Limit Cycle Equation Van Der Pol and Duffing Equation.
<strong>Majalah Ilmiah Matematika dan Statistika</strong>, [S.l.], v. 16, n. 1, p. 1-12, mar. 2016.
ISSN 2722-9866.
Available at: &lt;<a href="https://jurnal.unej.ac.id/index.php/MIMS/article/view/23729" target="_new">https://jurnal.unej.ac.id/index.php/MIMS/article/view/23729</a>&gt;. Date accessed: 04 may 2024.
doi: <a href="https://doi.org/10.19184/mims.v16i1.23729">https://doi.org/10.19184/mims.v16i1.23729</a>.