Bajracharya, Anup Muni. “Plant Growth Promoting Rhizobacteria (PGPR): Biofertiliser and Biocontrol Agent-Review Article”. Journal of Balkumari College 8 (December 31, 2019): 42–45. Accessed April 30, 2024. https://www.nepjol.info/index.php/jbkc/article/view/29304.