Title: Incentives to Reduce Groundwater Consumption in Yemen
Authors: P.J.G.J. Hellegersa, C.J. Perryb and Nasser Al-Aulaqic

Title: The Role of Terraces on Land and Water Conservation in Kuhlan- Affar Wide Sharis Districts Hajja -YAR
Author: Prof. Dr. Mohamed A. AlProf. Al–HebshiHebshi
Year: 2008

Title: Estimation of the Operation and Maintenance Expenditures for Spate Irrigation Systems
Authors: Wadis Zabid, Rima, Abyan, and Tuban
Year: 1998

Title: Catchment Yield Estimation

Title: Local Groundwater Regulation: Water Praxis Document Nr. 14
Author: Frank van Steenbergen

Title: Impact of Land Tenure and Other Socioeconomic Factors on Mountain Terrace Maintenance in Yemen
Author: Aden Aw-Hassan, M. Alsanabani and Abdul Rahman Bamatraf
Year: 2000

Title: Yemen: Scenarios & Indicators
Year: 2010

Title: Environmental Impact Issues Related to Recharge Enhancement and Irrigation in the Sana’a Basin
Year: 2001

Title: Yemen Agricultural Policy Review: Working Paper Number III. Policy Simulations  (Sources of Growth)
Authors: Christopher Ward, Matthias Schlund, Stephen Mink, Farouq M. Kassem
Year: 2013

Title: Yemen: Agricultural Policy Review, Working Paper Number I Basic Facts – Economics of Crop Production in Yemen
Authors: M. Schlund, F.M. Kassem, S.Mink, A.G. Ali, M. Alhidary, S. Al Abssi, A. AlSayed, A.G.Hmiri, A.Saber, H. AlHamdany, M. A. Bary
Year: 2013