Salmanova, F.A., Rzayev, P.F., Yusupov, I.M. and Velizade, I.E. 2016. Usage of solar and wind energy for hot water supply of country (cottage) house in natural conditions of absheron. Eastern-European Journal of Enterprise Technologies. 3, 8(81) (Jun. 2016), 22–29. DOI:https://doi.org/10.15587/1729-4061.2016.72547.