Maintenance plans for irrigation facilities of pilot distributaries in Sindh, Pakistan: Volume two - Heran Distributary, Sanghar District - Ansari, A.M.; Sial, N.H.; Ursani, A.J.; Shabir, G.; Laghari, M.G.; Khayal, M.N.; Lashari, Bakhshal K.; Bhatti, M.A.; Skogerboe, G.V. (International Irrigation Management Institute, 1997)