Penetapan Penambatan N 2 Rhizobacterium Secara Kuantitatif Dengan Teknik Isotop 15 N Quantitative Assessment of N 2 Fixing Rhizobacterium Using Isotope 15 N Technique. MP 2016, 81 (2). https://doi.org/10.22302/iribb.jur.mp.v81i2.35.