PRIYANAKA, P.; RAMARAJI, R. .; SHANMUGA, S. K. Drone based contactless disinfectant spraying system: A safety COVID measures. International journal of health sciences, [S. l.], v. 6, n. S5, p. 3728–3755, 2022. DOI: 10.53730/ijhs.v6nS5.9406. Disponível em: https://sciencescholar.us/journal/index.php/ijhs/article/view/9406. Acesso em: 14 may. 2026.