Prasetyo, D., Imaria, D., Niswati, A., & Yusnaini, S. (2021). Effect of the 32nd-year Soil Tillage and Nitrogen Fertilization on the Population and Biomass of Earthworm under Zea mays L. JOURNAL OF TROPICAL SOILS, 26(2), 105–113. https://doi.org/10.5400/jts.2021.v26i2.105-113