VASILEV, Aleksandar.
 A MODEL WITH KNOWLEDGE EXTERNALITIES AND EDUCATIONAL POLICY.
<strong>Theoretical and Practical Research in Economic Fields</strong>, [S.l.], v. 12, n. 1, p. 39-41, june 2021.
ISSN 2068-7710.
Available at: &lt;<a href="https://journals.aserspublishing.eu/tpref/article/view/6220" target="_new">https://journals.aserspublishing.eu/tpref/article/view/6220</a>&gt;. Date accessed: 20 apr. 2024.
doi: <a href="https://doi.org/10.14505/tpref.v12.1(23).05">https://doi.org/10.14505/tpref.v12.1(23).05</a>.