1. Murphy, M.L.: The Busy Coder’s Guide to Android Programming (2008)
2. Headfirst Android Development: A Brain-Friendly Guidebook (2017)
3. Prakash, M., Gowshika, U., Ravichandran, T.: A smart device integrated with an android for alerting a person’s health condition: internet of things. Indian J. Sci. Technol. 9, 1–6 (2016)
4. Mahmud, M.S., Wang, H., Esfar-E-Alam, A.M., Fang, H.: A wireless health monitoring system using mobile phone accessories. IEEE Internet Things J. 4(6), 2009–2018 (2017)
5. Kundi, F.M., Habib, A., Habib, A.: Android-based health care management system. Int. J. Comput. Sci. Inf. Secur. (IJCSIS) 14(7), 77 (2016)