Mahsulot tavsifi
General overview of local and centralized water supply and its hygienic importance. Includes the balance of water resources, sanitation, and historical aspects of water supply
#suvtaminoti#ahomi#gigeenik
Muallif
Sotuvchi 376329Tasdiqlangan muallif
- Hujjatlari
- 19
- Sotilgan
- 18
