HAERTEL, Hermann.
 The Electric Circuit - A System Approach.
<strong>European Journal of Physics Education</strong>, [S.l.], v. 12, n. 3, p. 1-18, aug. 2021.
ISSN 1309-7202.
Available at: &lt;<a href="https://eu-journal.org/index.php/EJPE/article/view/254" target="_new">https://eu-journal.org/index.php/EJPE/article/view/254</a>&gt;. Date accessed: 26 apr. 2024.