R. Amin, N. R. . Sarker, M. . Ali, M. A. . Hashem, and M. Khatun, “Study on cutting intervals on biomass yield, nutritive value and their oxalate content of different high yielding napier (P. purpureum) cultivars”, Asian Australas. J. Biosci. Biotechnol., vol. 1, no. 1, pp. 100–107, Apr. 2016.