Dimitrov Georgiev, G., Georgieva, M. Organization and Realization of the System for Raising the Level of Training at Schools of Higher Education. Д. Митрополия: НВУ Васил Левски, 2005 с. 331 - 334, 954-713-072-2 (т.2).
Dimitrov Georgiev, G., Georgieva, M. Organization and Realization of the System for Raising the Level of Training at Schools of Higher Education. Д. Митрополия: НВУ Васил Левски, 2005 с. 331 - 334, 954-713-072-2 (т.2).
Dimitrov Georgiev, G., Georgieva, M. (2005) Organization and Realization of the System for Raising the Level of Training at Schools of Higher Education, Д. Митрополия: НВУ Васил Левски с. 331 - 334, 954-713-072-2 (т.2).
Dimitrov Georgiev, G., & Georgieva, M. (2005). Organization and Realization of the System for Raising the Level of Training at Schools of Higher Education. Д. Митрополия: НВУ Васил Левски, с. 331 - 334.
Dimitrov Georgiev G, Georgieva M. Organization and Realization of the System for Raising the Level of Training at Schools of Higher Education. Д. Митрополия: НВУ Васил Левски; 2005. p. с. 331 - 334. ISBN: 954-713-072-2 (т.2).
