O'zbekiston respublikasi oliy va o'rta maxsus ta'lim vazirligi toshkent temir yo'l muhandislari instituti

Handbook of Railway Vehicle Dynamics. Simon Iwnicki. (United States, 2006. 50-52б).

7Handbook of Railway Vehicle Dynamics. Simon Iwnicki. (United States, 2006. 60-61 б).

8^ Terry Berro B., Rodriguez Salva A.A. Primary healthcare strategy in disaster situation (United States, 2006. 82 б).

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10^ Terry Berro B., Rodriguez Salva A.A. Primary healthcare strategy in disaster situation. United States, 2006. 90-91 б).

11Handbook of Railway Vehicle Dynamics. Simon Iwnicki. (United States, 2006. 48 б).

12^ Terry Berro B., Rodriguez Salva A.A. Primary healthcare strategy in disaster situation ( Gas. Sanit. – 2005. 96 б)