B. Bolgár and É. Ráduly-Zörgő, “DEVELOPMENT OF LOGICAL-MATHEMATICAL ABILITIES OF HEARING IMPAIRED STUDENTS THROUGH THE USE OF BOARD GAMES”, Különleges Bánásmód, vol. 1, no. 2, pp. 5–16, Jun. 2015, doi: 10.18458/KB.2015.2.5.