M. Fahim Ferdous Khan, Taisei Yamazaki, Ken Sakamura. Design and Implementation of an Online and Cost-Effective Attendance Management System Using Smartphones and Cloud Services. In Takahiro Hara, Hirozumi Yamaguchi, editors, Mobile and Ubiquitous Systems: Computing, Networking and Services - 18th EAI International Conference, MobiQuitous 2021, Virtual Event, November 8-11, 2021, Proceedings. Volume 419 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, pages 650-664, Springer, 2021. [doi]
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