1. Stepanenko, V. (2022). Shcho pryvlasnyla Rosiіa? [What Russia appropriated?]. ukrainer.net. Retrieved from https://www.ukrainer.net/rosia-pryvlasnyla [in Ukrainian].
2. Lyst Ministerstva osvity i nauky Ukrainy Pro pereliky navchalnoi literatury ta navchalnykh prohram, rekomendovanykh Ministerstvom osvity i nauky Ukrainy dlia vykorystannia v osvitnomu protsesi zakladiv osvity u 2023/2024 navchalnomu rotsi [Letter of the Ministry of Education and Science of Ukraine About the lists of educational literature and educational programs recommended by the Ministry of Education and Science of Ukraine for use in the educational process of educational institutions in the 2023/2024 academic year]. (2023, August 14, № 1/12038-23). Retrieved from https://osvita.ua/legislation/Ser_osv/89766 [in Ukrainian].
3. Yaroshenko, O. G. (2015). Khimiia [Chemistry : a textbook for the 7th grade for institutions of general education]. Kharkiv : SYTSYIA [in Ukrainian].
4. Kryklia, L. S., & Popel, P. P. (2020). Khimiia [Chemistry : a textbook for the 7th grade for institutions of general education]. Kyiv : Akademiia [in Ukrainian].
5. Savchyn, M. M. (2015). Khimiia [Chemistry : a textbook for the 7th grade for institutions of general education]. Kyiv : Hramota [in Ukrainian].