STAMENKOVSKI, Sasha; 						ZAJKOV, Oliver.
 Seventh Grade Students’ Qualitative Understanding of the Concept of Mass Influenced by Real Experiments and Virtual Experiments.
<strong>European Journal of Physics Education</strong>, [S.l.], v. 5, n. 2, p. 6-16, feb. 2017.
ISSN 1309-7202.
Available at: &lt;<a href="https://eu-journal.org/index.php/EJPE/article/view/65" target="_new">https://eu-journal.org/index.php/EJPE/article/view/65</a>&gt;. Date accessed: 18 apr. 2024.
doi: <a href="https://doi.org/10.20308/ejpe.v5i2.65">https://doi.org/10.20308/ejpe.v5i2.65</a>.