Nikolaev, R., Shabanova, M. Application of Computer Tools for Prevention of Mistakes in a Solution of Exam Tasks of Optimization Investment. Sofia: STEF92 Technology Ltd., 2016 pp. 549 - 556, ISBN 978-619-7105-70-4 ; ISSN 2367-5659.
Nikolaev, R., Shabanova, M. Application of Computer Tools for Prevention of Mistakes in a Solution of Exam Tasks of Optimization Investment. Sofia: STEF92 Technology Ltd., 2016 pp. 549 - 556, ISBN 978-619-7105-70-4 ; ISSN 2367-5659.
Nikolaev, R., Shabanova, M. (2016) Application of Computer Tools for Prevention of Mistakes in a Solution of Exam Tasks of Optimization Investment, Sofia: STEF92 Technology Ltd. pp. 549 - 556, ISBN 978-619-7105-70-4 ; ISSN 2367-5659.
Nikolaev, R., & Shabanova, M. (2016). Application of Computer Tools for Prevention of Mistakes in a Solution of Exam Tasks of Optimization Investment. Sofia: STEF92 Technology Ltd., pp. 549 - 556.
Nikolaev R, Shabanova M. Application of Computer Tools for Prevention of Mistakes in a Solution of Exam Tasks of Optimization Investment. Sofia: STEF92 Technology Ltd.; 2016. p. pp. 549 - 556. ISBN: ISBN 978-619-7105-70-4 ; ISSN 2367-5659.