J. F.  Veldkamp, de Koning, R., and Sosef, M. S. M., ?Generic delimitation of Rottboellia and related genera (Gramineae)?, Blumea, vol. 31, pp. 281-307, 1986.

R.  de Koning, Sosef, M. S. M., and Veldkamp, J. F., ?A revision of Heteropholis and Thaumastochloa (Gramineae)?, Garden's Bulletin, Straits Settlement, Singapore., vol. 36, pp. 137-162, 1983.

R.  de Koning, Sosef, M. S. M., and Veldkamp, J. F., ?A revision of Heteropholis and Thaumastochloa (Gramineae)?, Garden's Bulletin, Straits Settlement, Singapore., vol. 36, pp. 137-162, 1983.