PARIHAR, S., and V. SONI. “Biophysical Characterization of Drought Tolerance in Wheat (Triticum Aestivum L.) through Polyphasic Chlorophyll Fluorescence OJIP Analysis”. Biotechnological Research, Vol. 2, no. 1, Jan. 2016, pp. 48-52, http://br.biomedpress.org/index.php/br/article/view/712.