Boryak Oksana Volodymyrivna. Theory and practice of forming speech activity of mentally retarded children of junior school age : к.психол.н. : spec.. 13.00.03 - Корекційна педагогіка : presented. 2019-05-15; popup.evolution: .; National Pedagogical Dragomanov University. – , 0519U001088.

Updated: 2026-11-08