Archer, Emma Rosa Mary; Du Toit, Justin; Engelbrecht, Christina Johanna; Hoffman, M. Timm; Landman, Willem Adolf; Malherbe, Johan B.; Stern, Maryke(Elsevier, 2022-01)
Bieri, Mari; Du Toit, Justin; Feig, Gregor Timothy; Maluta, Nnditshedzeni Eric; Mantlana, Brian; Mateyisi, Mohau; Midgley, Guy F.; Mutanga, Shingirirai; Von Maltitz, Graham; Brummer, Christian(National Association for Clean Air, 2022)