Author: de Wet, Corene, Joubert, Rika, Kitching, Ansie E., Marumo, Michael L., McDonald, Zahraa, Mollo, Nicholus T., Oosthuizen, Louis J., Potgieter, Ferdinand J., van Rooyen, Bianke, Smit, Marius H., Thebenyane, Amos T., van der Bijl, Andre, van der Walt, Johannes (Hannes) L. Source:Directory of Open Access Books Usage Rights: Publication Date: 2019 View Open Access Book
Author: Purhonen, Semi, Heikkilä, Riie, Karademir Hazir, Irmak, Lauronen, Tina, Fernández Rodríguez, Carlos J., Gronow, Jukka Source:Directory of Open Access Books Usage Rights: Publication Date: 2018 View Open Access Book