M, Karthikeyan; KA, Gowrishankar.; SEKAR. G, Rajith; ELAMARAN, E; SUDHAKAR, B. Multilevel Security System Using Raspberry Pi3. International Journal of Engineering & Technology, [S. l.], v. 7, n. 2.24, p. 259–262, 2018. DOI: 10.14419/ijet.v7i2.24.12060. Disponível em: https://www.sciencepubco.com/index.php/ijet/article/view/12060.. Acesso em: 3 may. 2024.