Derun, E. , Yalcin, T. , Ozdemir, O. , Kipcak, A. , Tugrul, N. , Piskin, S.. "The Effect of Sodium Bicarbonate on the Mg and P Concentrations in Turkish Black and Green Tea ". World Academy of Science, Engineering and Technology, Open Science Index 90, International Journal of Environmental and Ecological Engineering, (2014), 8(6), 570 - 573.