Wardrop Engineering -Tamale, GH

Tamale, G.H.Wardrop En & Accra, G.H.Ghana Wate, 1991. Community liaison programme : strategy discussion paper Draft, version no. 8ᵉ éd., Accra, Ghana: Ghana Water and Sewerage Corporation. Available at: https://fr.ircwash.org/sites/default/files/205.1-91CO-10078.pdf.