Kryvokon, A. TRACTOR BUILDING IN UKRAINE: BACKGROUND, HISTORY AND DEVELOPMENT TRENDS IN THE ASPECT OF WORLD PROGRESS (1920s‒1980s). Kharkiv: TECHNOLOGY CENTER PC, 2015. Accessed January 22, 2025. https://doi.uran.ua/index.php/pctc/catalog/book/978-966-97466-9-6.