Utami, D. S. ., M. R. . Setiawati, and T. Simarmata. “Synergistic and Competence of Native Plant Growth Promoting Rhizobacteria on Direct Mechanism on Growth Plants: A Review”. International Journal of Life Science and Agriculture Research, vol. 3, no. 2, Feb. 2024, pp. 103-11, doi:10.55677/ijlsar/V03I2Y2024-08.