TOYCHIEV, F. N.; ACHILOV, H. J.; MAMADIEV, H. N.; RAZHABOV, Zh. B. Energy Saving with Two-Speed Motors in Pumping Stations. Journal of Ethics and Diversity in International Communication, [S. l.], v. 1, n. 6, p. 115–118, 2021. Disponível em: https://oajournals.net/index.php/jedic/article/view/751. Acesso em: 1 sep. 2025.