T. M. Sa SA, T. M., & ISRAEL, D. W. (1991). ENERGY STATUS AND FUNCTIONING OF PHOSPHORUS-DEFICIENT SOYBEAN NODULES. PLANT PHYSIOLOGY, 97(3), 928–935. https://doi.org/10.1104/pp.97.3.928 Sa, T. M. (1991). Effects of phosphorus deficiency on energy status and functioning of soybean nodules. Dissertation Abstracts International. B, Sciences and Engineering, 51(12), 5680.