- من
- Saudi Manpower Solutions Co. (SMASCO)
- ماذا
- 2,030 people
- أين
- السعودية (Riyadh, Saudi Arabia)
- متى
The largest house cleaning lesson consists of 2,030 participants, achieved by Saudi Manpower Solutions Co. (SMASCO) (Saudi Arabia), in Riyadh, Saudi Arabia, on 13 April 2018.
The lesson was part of SMASCO's continuous employee training.
