Budiasih, R., et al. “The Effect of Bamboo’s Root PGPR Concentration and Row Spacing on Growth and Yield of Kidney Bean (Phaseolus Vulgaris)”. Jurnal Sains Dasar, vol. 7, no. 2, Oct. 2018, pp. 103-10, doi:10.21831/jsd.v7i2.38550.