Naseem, Sajid; Gevers, Bianca R.; Boldt, Regine; Labuschagne, F.J.W.J. (Frederick Johannes Willem Jacobus); Leuteritz, Andreas(Royal Society of Chemistry, 2019-01-22)
Eloff, R.(University of Pretoria. Faculty of Engineering, Built Environment and Information Technology. Dept. of Industrial and Systems Engineering, 2011)