OPEN NATIONAL INVITATION TO TENDERS N°008/AONO/CGGB/SG/CIPM/2022 OF 06/04/2022 FOR THE CONSTRUCTION OF A MINI-DRINKING WATER SUPPLY IN GARI-GOMBO (BAOBAB), TOWN OF GARI-GOMBO, BOUMBA AND NGOKO DEPARTMENT, EASTERN REGION (EXPIRED)