1. A. Angstrom., "Solar and terrestrial radiation", Quarterly Journal of the Royal Meteorological Society, Vol. 50, (1924), 121-126.
2. J.A. Prescott., "Evaporation from water surface in relation to solar radiation", Transactions of the Royal Society of South Australia, Vol. 64, No. 1, (1940), 114-118.
3. B. Y .H. Liu. and R. C. Jordan., "The inter-relationship and characteristic distribution of direct, diffuse and total solar radiation", Solar Energy, Vol. 4, (1960), 1-19.
4. M. Collares–Pereira. and A. Rabl., "The average distribution of solar radiation, correlations between diffuse and hemispherical and between daily and hourly isolation values", Solar Energy, Vol. 22, No. 2, (1979), 155-164.
5. Z.Jin. and W.Yezheng., "General Formula for estimation of monthly average daily global solar radiation in China", Energy Conversion & Management, Vol. 46, (2005), 257–268.
6. N. Elagib. and M.G Mansell., "New approaches for estimating global solar radiation across Sudan", Energy Conversion & Management, Vol. 41, (2000), 419–434.
7. I.T. Togrul., H. Togrul. and D. Evin., "Estimation of monthly global solar radiation from sunshine duration measurements in Elazig", Renewable Energy, Vol. 19, (2000), 587–595.
8. J. Almorox. and C. Hontoria., "Global solar radiation estimation using sunshine duration in Spain", Energy Conversion & Management, Vol. 45, (2004), 1529–1535.
9. M.A. Behrang., E. Assareh., A. Ghanbarzadeh. and A.R. Noghrehabadi., "The potential of different artificial neural network (ANN) techniques in daily global solar radiation modeling based on meteorological data", Solar Energy, Vol. 84, No. 8, (2010), 1468–1480
10. K. Angela., S. Taddeo. and M. James., "Predicting Global Solar Radiation Using an Artificial Neural Network Single-Parameter Model", Advances in Artificial Neural Systems, Vol. 2011, (2011), 229-236.
11. A. Moreno., M.A. Gilabert. and B. Martinez., "Mapping daily global solar irradiation over Spain: A comparative study of selected approaches", Solar Energy, Vol. 85, (2011), 2072–2084
12. M. Ozgoren., M. Bilgili., B. Sahin., "Estimation of global solar radiation using ANN over Turkey", Expert Systems with Applications, Vol. 39, (2012), 5043–5051.
13. R. Kumar., R. Aggarwal. and J.D. Sharma., "New Regression Model to Estimate Global Solar Radiation Using Artificial Neural Network", Advances in Energy Engineering, Vol. 1, No. 3, (2013), 66-73.
14. B. Amrouche. and X.L. Pivert., "Artificial neural network based daily local forecasting for global solar radiation", Applied Energy, Vol. 130, (2014), 333–341.
15. K. Kadirgama., A.K. Amirruddina. and R.A.Bakar., "Estimation Of Solar Radiation By Artificial Networks: East Coast Malaysia", Energy Procedia, Vol. 52, ( 2014 ), 383 – 388.
16. A.K. Yadav., H. Malik. and S.S. Chandel., "Selection of most relevant input parameters using WEKA for artificial neural network based solar radiation prediction models", Renewable & Sustainable Energy Reviews, Vol. 31, (2014), 509–519.
17. F. Rosenblatt, "The perceptron: A probabilistic model for information storage and organization in the brain", Psychological Review, Vol. 65, No. 6, (1958), 386-408.
18. A. Sozen., E. Arcaklioglu. and M. Ozalp., "Estimation of solar potential in Turkey by artificial neural networks using meteorological and geographical data", Energy Conversion & Management, Vol. 45, (2004), 3033–3052.
19. C. Gershenson., "Artificial Neural Networks for Beginners, Formal Computational Skills Teaching Package", COGS, University of Sussex, Brighton, UK (2001).