95
اﻟﻤﻘﺪﻣﺔ
Preface
اﻟﺒﺎب اﻟﺜﺎﻧﻲ – ﺑﻴﺎﻧﺎت إﺣﺼﺎﺋﻴﺔ
)4 ( إﺣﺼﺎﺋﻴﺎت ﻣﺸﺎرﻳﻊ اﻟﻬﻨﺪﺳﺔ اﻟﺼﺤﻴﺔ
Statistics for Sanitary
Engineering Projects
Pages 89 - 95
3 587
95 103