Notice Of Open National Call For Tender N°20/Aono/Cren/Cipm/Tbec/2026 Of 04/24/2026, For The Construction Work Of A Block Of Three (03) Classrooms At The Balaza Alkali High School And Two (02) Blocks Of Two (02) Classrooms At Bogo High School And Doubel High School, In The Diamare Department, Extreme – North Region Funding: Bip Cren (Transferred Resources, Minddevel), Fy 2026