Miss.Bartakke Shwetali L, et al. “DESIGN AND DEVELOP AN INSTITUTIONAL SMART ATTENDANCE SYSTEM BASED ON HEART BIT AND FINGERPRINT BIOMETRIC”. JournalNX - A Multidisciplinary Peer Reviewed Journal, Feb. 2021, pp. 44-47, https://repo.journalnx.com/index.php/nx/article/view/2107.