[2] viXra:1602.0287 submitted on 2016-02-22 16:34:29, (279 unique-IP downloads)
Authors: Marian Siminică, Aurelia Trăistaru
Category: Education and Didactics
[1] viXra:1601.0204 submitted on 2016-01-18 15:13:54, (283 unique-IP downloads)
Authors: Aurelia Dumitru, Marioara Avram, Marian Siminică
Category: Social Science