Reference Base The mineral content of food plants of the Sumatran rhinoc...
Lee, Y.H.; Stuebing, R.B.; Ahmad, A.H., 1993. The mineral content of food plants of the Sumatran rhinoceros (Dicerorhinus sumatrensis) in Danum Valley, Sabah, Malaysia. Biotropica 25 (3): 352-355, tables 1-2