To Select A Study Office With The Aim Of Completing The Update Of The Study On The Rehabilitation Of The Rmilia-Zefzaf Water System With Potable Water From The Delegation Of New Souk - Sidi Bouzid, And A Study On The Rehabilitation Of The Bouhdma Water System From The Delegation Of Mzouna, With The Aim Of Referring Its Disposal To The Tunisian Company For Water Exploitation And Distribution.