Simeon Oka, Editor-in-Chief of the journal Thermal Science request that it is necessary to correct Equation No. 6 in the paper CONTRIBUTION STUDY OF THE THERMODYNAMICS PROPERTIES OF THE AMMONIA-WATER MIXTURES by Sahraoui KHERRIS a, b*, Mohammed MAKHLOUF b, Djallel ZEBBAR a, and Omar SEBBANE c aInstitute of Sciences and Technology, University of Tissemsilt, Tissemilt, Sidi Bel Abbes, Algeria bReactifs Systems and Materials Laboratory, Djillali LIABES University, Algeria cMaterials and Renewable Energy Laboratory, Abou Bekr Belkaid University, Tlemcen, Algeria Original scientific paper DOI: 10.2298/TSCI110206083K published in the journal THERMAL SCIENCE: Year 2013, Vol. 17, No. 3, pp. 891-902 since due to typing error Equation No. 6, of this paper has not been correctly written. Link to the corrected article 10.2298/TSCI110206083K