Adult learning foreign language : monograph / Dmitry L. Matukhin ; National research Tomsk Polytechnic Univ., Inst. of power engineering, Depart. of foreign languages. - Tb. : Universal, 2013. - 169 p. : tab. ; 21 cm.см.. - ბიბლიოგრ. რუს. ენ.: გვ. 136-167. - ISBN 978-9941-17-915-0[MFN: 191664]