DEEPALI SANAP; CHINMAY SHIMPI. PORTABLE BATTERY OPERATED FLOOR CLEANING MACHINE WITH MULTIPLE OPERATIONS. International Journal of Innovations in Engineering Research and Technology, Maharashatra, India, p. 1–3, 2021. Disponível em: https://repo.ijiert.org/index.php/ijiert/article/view/1918. Acesso em: 29 jan. 2026.