Mohd Jalili, Afiqah Liyana, and Delina Mei Yin Beh. “Double Authentication Locking System Using NFC Technology and Password”. Journal of Computing Technologies and Creative Content, vol. 3, no. 1, Sept. 2019, pp. 35-39, https://ejournal.unikl.edu.my/index.php/JTeC/article/view/700.