M. A. Aziz, F. Hazra, S. Salma, and D. Nursyamsi, “Soil Enzyme Activities and Their Relationship to Total Soil Bacteria, Soil Microbial Biomass and Soil Chemical Characteristics of Organic and Conventional Farming”, j Trop. Soils, vol. 23, no. 3, pp. 133–141, Mar. 2019.