Aldaya, M. M., Chapagain, A. K., Hoekstra, A. Y., & Mekonnen, M. M. (2012). The water footprint assessment manual: Setting the global standard. Routledge
Bonamente, E., Rinaldi, S., Nicolini, A., & Cotana, F. (2017). National water footprint: toward a comprehensive approach for the evaluation of the sustainability of water use in Italy. Sustainability, 1-13.
Boulay, A. M., Benini, L., Bare, J., & Berger, M. (2017). The WULCA consensus characterization model for water scarcity footprints: assessing impacts of water consumption based on available water remaining (AWARE). The International Journal of Life Cycle Assessment, 1-12.
Burman, N.W., Croft, J., Engelbrecht Sh., Ladenika, A. O., MacGregor, O. S., Maepa, M., Bodunrin, M. O., & Harding, K. G. (2018). Review: life-cycle assessment, water foot printing, and carbon foot printing in Portugal. Int J Life Cycle Assess,
23, 1693-1700.
Cecilio, R., & Zanetti, S. S. (2018). Water footprint on Itapemirim watershed. Scientia
Agraria, 100-111.
Fereres, E., Villalalobos F. J., Orgaz F., Minguez M. I., Halsema G.van, & Perry C.J. (2017). Commentary: On the water footprint as an indicator of water use in food production. Irrigation Science, 35, 83-85.
GCF Water footprint calculator. (2018). Retrieved September 18, 2018, from https://www.watercalculator.org/
Hoekstra, A. Y. (2018). How to reduce our water footprint to a sustainable level?. UN Chronicle, 1-3.
Hoekstra, A. Y. (2017). Water footprint assessment: evolvement of a new research field. Water Resource Management, 31, 3061-3081.
Hoekstra, A. Y., & Mekonnen, M. M. (2016). Imported water risk: the case of the UK. Environmental Research Letters, 11, 1-9.
Hoekstra, A. Y. (2015). The water footprint: the relation between human consumption and water use. Springer Water, 35-49.
Hoekstra, A. Y., Mekonnen, M. M., Aldaya, M. M., Chapagain, A. K. (2011). The water footprint assessment manual: Setting the global standard. Earthscan Publishers, Washington, DC.
Hoekstra, A. Y. (2009). A comprehensive introduction to water footprints, water footprint network. Scientific Director, University of Twente, Netherlands.
Hoekstra, A. Y., & Chapagain, A. (2007). Water footprints of nations: Water use by people as a function of their consumption pattern. Water Resources Management, 21, 35-48.
IMACE European Margarine Association. (2016). Sustainability Guidelines, 168/12 Avenue de Tervuren, B-1150 Brussels, 1-24. Retrieved from www.imace.org
Khoso, S., Wagan, H. F., Tunio, H., A., & Ansari, A. A. (2015). An overview on emerging water scarcity in Pakistan, its causes, impacts and remedial measures. Journal of Applied Engineering Science, 13(1), 35-44.
Liu, J., Liu, Q., & Yang, H. (2015). Assessment water scarcity by simultaneously considering environmental flow requirements, water quantity, and water quality. Ecological indicators, 60, 434-441.
Mekonnon, M. M., & Hoekstra, A. Y. (2016). Four billion people facing severe water scarcity. Science advances, 2(2), e1500323.
Pellicer-Martínez F., & Martínez-Paz J. M. (2016). The water footprint as an indicator of environmental sustainability in water use at the river basin level. Science of the Total Environment, 571, 561-574.
Santosh S. M., Singh D.K., & Sarangi A. (2018). Assessing water footprints and virtual water flows in Gomti river basin of India. Current Science, 115(4), 721-728.
UOT Prof. Dr. IR. A.Y. Hoekstra (Arjen) Full Professor in Water Management. (2018). Retrieved September 2, 2018, from https://people.utwente.nl/a.y.hoekstra
WFN What is water footprint assessment?. (2008). Retrieved September 3, 2018. from https://waterfootprint.org/en/water-footprint/water-footprint-assessment/
WFN What is a water footprint?. (2008). Retrieved September 1, 2018. from https://waterfootprint.org/en/water-footprint/what- is-water-footprint/
WWF What is water footprint? Calculating water footprint. (2017). Retrieved November 29, 2018. from http://www.wwfpak.org/wsp/WaterFootprint.php
Zeng, Z., Liu, J., Koeneman, P.H., Zarate, E., & Hoekstra, A. Y. (2012). Assessing water footprint at river basin level: a case study for the Heihe river basin in northwest China. Hydrology and Earth System Sciences, 16, 2771-2781.
Zyoud, S. H., Kaufmann, L. G., Shaheen, H., Samhan, S., & Fuchs-Hanusch, D. (2016). A framework for water loss management in developing countries under fuzzy environment: Integration of Fuzzy AHP with Fuzzy TOPSIS. Expert Systems with Applications, 61, 86-105.