NARAYANA, Dr.V.A; RAJU, K.; RAO, B.VENKATESWER; VARSHITHA, T. LAXMI; SACHIN, B. SMART LOCK SYSTEM USING OTP. The journal of contemporary issues in business and government, [S. l.], v. 28, n. 4, p. 2235–2238, 2022. Disponível em: http://www.cibgp.com/index.php/1323-6903/article/view/2762. Acesso em: 31 oct. 2025.