UNREGISTERED MARRIAGE AS MODERN PRACTICE OF STUDENTS' YOUTH FAMILY RELATIONS Статья Cherdymova E.I., Rozanova E.V., Dementieva Yu.V., Popova O.V., Kryukova N.I., Mirzalimov R.M., Alpatov Y.M. EurAsian Journal of BioSciences. Foundation for Enviromental Protection and Research. Том 12. 2018. С. 511-517