1. Alef, K., & Nannipieri, P. (1995). Methods in applied soil microbiology and biochemistry. Academic Press.
2. Anderson, J. D., & Ingram, J. S. I. (1993). Tropical soil biology and fertility: A handbook of methods. Oxford University Press.
3. Anderson, T. H. (1994). Physiological analysis of microbial communities in soil: Application sand limitations. In K. Ritz, J. Dighton, & K. E. Giller (Eds.), Beyond the biomass (1st ed., pp. 67–76). British Society of Soil Science.
4. Arf, O., Meirelles, F. C., Portugal, J. R., Buzetti, S., Sá, M. E., & Rodrigues, A. F. R. (2018). Benefits of maize intercropped with grasses and legumes and their effects on productivity in no-till systems. The Brazilian Journal of Maize and Sorghum, 17, 431–444. https://doi.org/10.18512/1980-6477/rbms.v17n3p431-444
5. Balin, N. M., Biachini, C., Ziech, A. R. D., Luchese, A. V., Mauricio, V. A., & Conceição, P. C. (2017). Soil fauna under different soil management systems with oats and crops cucurbits. Revista Scientia Agraria, 18, 74–84. https://doi.org/10.5380/rsa.v18i3.52133