Koobonye M, Maule B V and Mogotsi K 2018:  
Mechanical scarification and hot water treatments enhance germination of Leucaena leucocephala (Lam.) seeds. 
 Livestock Research for Rural Development. Volume 30, Article #15. 
 Retrieved 
, from http://www.lrrd.org/lrrd30/1/kbmo30015.html