Bello, Abubakar; Daru, Barnabas H.; Stirton, Charles H.; Chimphango, Samson B.M.; Van der Bank, Michelle; Maurin, Olivier; Muasya, A. Muthama(Oxford University Press, 2015-10-27)
Trytsman, Marike; Westfall, Robert H.; Breytenbach, Philippus J.J.; Calitz, Frikkie J.; Van Wyk, Abraham Erasmus (Braam)(Pensoft Publishers, 2016-10-04)