1.
Marais A, Kotzé E, Labuschagne J, Visser L, Morris CD. Proposed adaptation of the KMnO4 oxidation method for determining active carbon for South African soils. S. Afr. J. Sci. [Internet]. 2020 Jan. 29 [cited 2024 Mar. 29];116(1/2). Available from: https://sajs.co.za/article/view/6443