The importance of mother tongue in the cognitive development of Roma children

KYUCHUKOV, Hristo. The importance of mother tongue in the cognitive development of Roma children. In Through teachers and mothers to Roma and other disadvantaged children: focus on quality pre-school education : [UNESCO international training course], Bratislava, September 4-6, 2013. - Bratislava : Slovak Commission UNESCO, Research institute for child psychology and patopsychology and education section, 2013. ISBN 978-80-970733-5-0, s. 18-27.