Pawlak, M., Guziur, J., Poniszewska-Marańda, A. and Stolarek, J. (2018) “Virtual Money for Purchases in School Shops and for Educational Applications: eZloty”, Journal of Applied Computer Science, 26(2), pp. 147-160. doi: 10.34658/jacs.2018.26.2.147-160.