Development of Low-Cost Agricultural Sprayer for Hexacopter Drones. Journal of Technology and Innovative Knowledge, [S. l.], v. 1, n. 1, p. 25–34, 2024. Disponível em: https://jotik.astu.edu.et/index.php/JOTIK/article/view/27.. Acesso em: 6 oct. 2024.