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2. Rokita S., Chudy-Laskowska K., Innovativeness of Polish Enterprises in The Light of Expenditures and Effects Achieved in The Years 2009-2021, [w:] Proceedings of the 42nd International Business Information Management Association Conference (IBIMA) : Global Economic Development Research within 2025 Vision, International Business Information Management Association (IBIMA) (pod red.) Khalid S. Soliman, 2023, s. 536-546, ISBN/ISSN: 979-8- 9867719-0-8.
3. Chudy-Laskowska K., Rokita S., Profitability of Energy Sector Companies in Poland: Do Internal Factors Matter?, ENERGIES, t. 17, z. 20, 2024, s. 1-28, ISBN/ISSN: 1996-1073.
4. Szydełko Ł., Rokita S., Financial Benchmarking on the Example of Energy Sector Companies in Poland, EUROPEAN RESEARCH STUDIES JOURNAL, t. XXVIΙ, z. 4, 2024, s. 837-865, ISBN/ISSN: 1108-2976.
5. Rokita S., Szydełko Ł., Innovation of Enterprises in Poland by Voivodeship in the Years 2018-2022, EUROPEAN RESEARCH STUDIES JOURNAL, t. XXVII, z. 4B, 2024, s. 166-187, ISBN/ISSN: 1108-2976.
