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Title | Author(s) | ISBN | Year | Destination English [книга] | Tsvetkova, Nikolina Valentinova (и др.) |   | 2022  |
English for You for 10.th Grade [книга] | Tsvetkova, Nikolina Valentinova (съавтор) |   | 2011-  |
English for You for 9.th Grade [книга] | Tsvetkova, Nikolina Valentinova (съавтор) |   | 2010-  |
English for you for the 8. th grade [книга] | Tsvetkova, Nikolina Valentinova (съавтор) |   | 2009-  |
English in mind for Bulgaria [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-344-366-6  | 2017  |
English in mind for Bulgaria A1 [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-344-360-4  | 2017  |
English in mind for Bulgaria A2 [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-344-365-9  | 2018  |
English in mind for Bulgaria A2.1 [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-344-363-5  | 2017  |
Flash on English A1 for Bulgaria [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-344-399-4  | 2017  |
Flash on English for Bulgaria A2 [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-344-402-1  | 2017  |
Flash on English for Bulgaria B1. Pt. 2 [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-344-462-5  | 2018  |
Flash on English for Bulgaria B1.1 [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-344-405-2  | 2017  |
Freeway [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 978-954-18-0554-1  | 2007  |
Freeway 3 [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 954-18-0431-4  | 2005  |
Freeway за 3. клас [книга] | Tsvetkova, Nikolina Valentinova (съавтор) | 954-18-0381-4  | 2004  |