Zhelezov, Ognyan; Petrova, Valentina. 2025. Database Management Systems. Textbook. Varna: NVNA “N. Y. Vaptsarov”, p. 1–110. ISBN 978-619-7752-08-3 (e-book). – Prepared for print: 20.02.2025.
Zhelezov, Ognyan; Petrova, Valentina. 2024. Creating and Using Databases. Textbook. Varna: NVNA “N. Y. Vaptsarov”, 2024, p. 1–126. ISBN 978-619-7752-02-1 (print). ISBN 978-619-7752-03-8 (e-book). – 18.03.2024.
Zhelezov, Ognyan; Petrova, Valentina. 2024. Informatics (MS Word, Excel, PowerPoint). Textbook. Varna: NVNA “N. Y. Vaptsarov”, 2024, p. 1–124. ISBN 978-619-7752-04-5 (print). ISBN 978-619-7752-05-2 (e-book). Prepared for print: 27.04.2024.
Shopov, N. Public Health and National Security. Textbook for students of the Naval Academy “N. Y. Vaptsarov”. Varna: NVNA “N. Y. Vaptsarov”, 2023, p. 1–347. ISBN 978-619-7428-90-2 (print). ISBN 978-619-7752-01-4 (e-book).
Penchev, R. Technical Logistics. Varna: NVNA “N. Y. Vaptsarov”, 2023. ISBN 978-619-7428-91-9.
Vicheva-Vasileva, B.; Ancheva, K. Maritime English Course for Navigators: Sailing Directions. Varna: NVNA “N. Y. Vaptsarov”, 2022. ISBN 978-619-7428-85-8.
Enchev, V. Fundamentals of Maritime Law. Varna: Valiur 20A, 2022. ISBN 978-619-92142-0-6.
Vasilev, D.; Luchkanov, G. Manual for Independent Preparation in Technical Chemistry. Varna: NVNA “N. Y. Vaptsarov”, 2022. ISBN 978-619-7428-88-9 (print). ISBN 978-619-7428-89-6 (e-book).
Hristova, A. Physics Textbook for Students of NVNA “N. Y. Vaptsarov”. Varna: NVNA “N. Y. Vaptsarov”, 2022. ISBN 978-619-7428-77-3 (print). ISBN 978-619-7428-78-0 (e-book).
Stoyanov, N. Automated Information Systems for Combat Management. Varna: NVNA “N. Y. Vaptsarov”, 2022. ISBN 978-619-7428-74-2.
Moscov, Yu. B. Chemicals and Oils for the Operation of Ship Power Units. Varna: NVNA “N. Y. Vaptsarov”, 2022. ISBN 978-619-7428-75-9 (CD).
Kozhuharov, A. Successful Scientific Publications. Textbook. Varna: “Tera Balkanica”, 2018. ISBN 978-619-90844-1-0.
