van Huyssteen, I., A.R. Mulidzi, A.H. Meyer, and J. Wooldridge. “Alteration Index Three Facilitates Interpretation of β-Glucosidase, Acid-Phosphatase and Urease Activities in Soils Irrigated With Diluted Winery Wastewater”. South African Journal of Enology and Viticulture 41, no. 2 (November 4, 2020): 238–244. Accessed February 28, 2026. https://www.journals.ac.za/sajev/article/view/4195.