1. [1] Goswami, S., Choudhury, A., Das, S., Banerjee, T., & Ghosh, S. (2017). Automated password protected door lock system. Advances in Industrial Engineering and Management, 6(1), 48-52.
2. [2] Motwani, Y., Seth, S., Dixit, D., Bagubali, A., & Rajesh, R. (2021). Multifactor door locking systems: A review. Materials Today: Proceedings, 46, 7973-7979.
3. [3] Rahman, M. M., Ali, M. S., & Akther, M. S. (2018). Password Protected Electronic Lock System for Smart Home Security. International Journal of Engineering Research and Technology, 7(4), 541-544.
4. [4] Rane, C. (2015). Password Based Door Locking System Using GSM. International Journal of Engineering Trends and Applications (IJETA), 2(4), 48-53.
5. [5] Ray, I. (2022) Password based door lock system. International Research Journal of Modernization in Engineering Technology and Science, 4(5), 2405-2413.