TASCOVICI, Daliana Ecaterina, and Robert Gabriel DRAGOMIR. “The System of the Didactic Principles With Applicability in Teaching Economics”. Annals of Spiru Haret University. Economic Series 11, no. 2 (June 29, 2011): 107–112. Accessed May 21, 2024. https://www.anale.spiruharet.ro/economics/article/view/11211.