1. Biochemistry of the liver and laboratory assessment of its physiological and biochemical state: educational manual / O. S. Belonovskaya, A. A. Lisitsyna, L. Yu. Karpenko, A. A. Bakhta. – St. Petersburg: St. Petersburg State Academy of Veterinary Medicine, 2014. – 116 p. – EDN VNEEQL.
2. Karpenko, L. Yu. Characteristics of the antioxidant system of small domestic animals: educational manual / L. Yu. Karpenko, A. A. Bakhta. – St. Petersburg: St. Petersburg State Academy of Veterinary Medicine, 2005. – 39 p. – EDN TPQLBH.
3. Karpenko, L. Yu. Correlation assessment of indicators of general clinical blood analysis of large breed dogs / L. Yu. Karpenko, A. I. Kozitsyna, A. A. Bakhta // Agrarian science in ensuring food security and development of rural areas: collection materials of the International Scientific and Practical Conference,
4. Lugansk, January 25 – 08, 2021. – Lugansk: Lugansk State Agrarian University, 2021. – P. 227-228. – EDN KIZAOA.
5. Frequency of occurrence of electrolyte disturbances in small breed dogs in the city of St. Petersburg / L. Yu. Karpenko, A. I. Kozitsyna, A. A. Bakhta, P. A. Polistovskaya // Legal regulation in veterinary medicine. – 2022. – No. 2. – P. 115-118. – DOI 10.52419/issn2782-6252.2022.2.115. – EDN GMRTKF.