Allen, R.G., L.S. Pereira, D. Raes, and M. Smith. 1998. "Crop Evapotranspiration: Guidelines for Computing Crop Water Requirements." FAO Irrigation and Drainage Paper No. 56, Rome, Italy.

Aschonitis, VG et al. (2017): High-resolution global grids of revised Priestley-Taylor and Hargreaves-Samani coefficients for assessing ASCE-standardized reference crop evapotranspiration and solar radiation. Earth System Science Data, 9(2), 615-638.

Bristow, K.L. and G.S. Campbell. 1984. "On the Relationship Between Incoming Solar Radiation and Daily Maximum and Minimum Temperature." Agricultural and Forest Meteorology, vol 31, pp 159-166.

Bras, R.L. 1990. Hydrology: An Introduction to Hydrologic Science. Addison-Wesley, Reading, MA.

Engineering Manual 1110-2-1411. March 1065. Standard Project Flood Determination. U.S. Army Corps of Engineers, Davis, CA.

Follum, M. L., Downer, C.W., Niemann, J. D., Roylance, S. M., and Vuyovich, C. M.: A radiation-derived temperature-index snow routine for the GSSHA hydrologic model, J. Hydrol., 529, 723–736, 2015.

Hamon, W. R. 1963. Computation of direct runoff amounts from storm rainfall. Intl. Assoc. Scientific Hydrol. Publ. 63: 52‐62

Hansen, E.M., L.C. Schreiner, and J.F. Miller. 1982. Application of Probable Maximum Precipitation Estimates – United States East of the 105th Meridian. Hydrometeorological Report No. 52. National Weather Service, Washington, D.C.

Hargreaves, G. H., & Allen, R. G. 2003. History and evaluation of Hargreaves evapotranspiration equation. Journal of Irrigation and Drainage Engineering, 129(1), 53–63.

Hargreaves, G.H. and Z.A. Samani 1982. Estimating potential evapotranspiration. J. Irrig. and Drain Engr., ASCE, 108(IR3):223-230.

Hargreaves, G.H. and Z.A. Samani, 1985. Reference crop evapotranspiration from temperature. Transaction of ASAE 1(2):96-99.

Priestley, C.H.B. and R.J. Taylor. 1972. "On the Assessment of Surface Heat Flux and Evaporation Using Large-Scale Parameters." Monthly Weather Review, vol 100, pp81-92.

Satterlund, D.R. 1979. "An Improved Equation for Estimating Long-Wave Radiation from the Atmosphere." Water Resources Research, vol 15, no 6, pp 1649-1650.

Schreiner, L.C. and J.T. Riedel. 1978. Probable Maximum Precipitation Estimates, United States East of the 105th Meridian. Hydrometeorological Report No. 51. National Weather Service, Washington, D.C.

TVA, 1972. Heat and Mass Transfer Between a Water Surface and the Atmosphere. Tennessee Valley Authority, Norris, TN.

World Meteorological Organization. 2008. "8. Measurement of Sunshine Duration." Guide to Meteorological Instruments and Methods of Observations, Geneva, Switzerland.