Umar, Amirul H. Muhammad, Fitri A. A. Zakry, Mohammad Fitri A. Rahman, Muhammad I. N. H. Mohammad Sazali, Franklin Ragai Kundat, Masnindah Malahubban, Martini Mohammad Yusoff, and Mohammad Hailmi Sajili. “Mechanisms Used by Plant Growth-Promoting Rhizobacteria to Boost Plant Growth - A Review”. Journal of Phytology 15 (August 16, 2023): 101–109. Accessed October 8, 2025. https://www.updatepublishing.com/journal/index.php/jp/article/view/7213.