1. ENAM NANEMEH. (2019). DESIGN OF A WINDOW CLEANING ROBOT FOR HIGH RISE BUILDINGS,. Capstone Project submitted to the Department of Engineering, Ashesi University 2019.
2. "Effective Pneumatic Scheme and Control Strategy of a Climbing Robot for Class Wall Cleaning on High-rise Buildings";Zhang;International Journal of Advanced Robotic Systems,2006
3. HealthDay. (2019). https://consumer.healthday.com/. Retrieved from https://consumer.healthday.com/: https://consumer.healthday.com/
4. Autonomous lights detecting and reporting robots from e-scrap (Scrapines);Bula;IFAC PaperOnLine,2018
5. The European Cleaning Industry 1995-2016.;industry,2016