Georgieva-Lazarova, S., Lazarov, L. Pedagogy of the 21 Century. Education Management Information System. Veliko Turnovo: Унив. изд. "Св. св. Кирил и Методий", 2015 195 p. 978-619-208-032-7.
Georgieva-Lazarova, S., Lazarov, L. Pedagogy of the 21 Century. Education Management Information System. Veliko Turnovo: Унив. изд. "Св. св. Кирил и Методий", 2015 195 p. 978-619-208-032-7.
Georgieva-Lazarova, S., Lazarov, L. (2015) Pedagogy of the 21 Century. Education Management Information System, Veliko Turnovo: Унив. изд. "Св. св. Кирил и Методий" 195 p. 978-619-208-032-7.
Georgieva-Lazarova, S., & Lazarov, L. (2015). Pedagogy of the 21 Century. Education Management Information System. Veliko Turnovo: Унив. изд. "Св. св. Кирил и Методий", 195 p.
Georgieva-Lazarova S, Lazarov L. Pedagogy of the 21 Century. Education Management Information System. Veliko Turnovo: Унив. изд. "Св. св. Кирил и Методий"; 2015. p. 195 p. ISBN: 978-619-208-032-7.
