Kumar, A. R. Nirmal, et al. “Alternation in Enzyme Activities to Assess the Tolerance Susceptibility of Rice (Oryza Sativa L.) Genotypes to Heat and Drought Stresses”. International Journal of Bio-Resource and Stress Management, vol. 8, no. Apr, 2, Apr. 2017, pp. 285-90, https://ojs.pphouse.org/index.php/IJBSM/article/view/1110.