CHOUDHARY, RAM LAL, et al. “Performance of Rice (Oryza Sativa) Hybrids Grown by the System of Rice Intensification With Plant Growth-Promoting Rhizobacteria*”. The Indian Journal of Agricultural Sciences, vol. 80, no. 10, Oct. 2010, https://epubs.icar.org.in/index.php/IJAgS/article/view/1311.