Cabac, Eugeniu. “METODICA INTRODUCERII NOŢIUNII DE RECURSIVITATE PRIN UTILIZAREA GRAFICII”. Acta et Commentationes Sciences of Education 1, no. 1 (June 19, 2019): 144-147. Accessed August 4, 2021. https://revista.ust.md/index.php/acta_educatie/article/view/30.