D. A.  Vaughan, ?A new rhizomatous Oryza species (Poaceae) from Sri Lanka?, Botanical Journal of the Linnean Society, vol. 103, pp. 159-163, 1990.

, ?Epidermal Features and Spikelet Micromorphology in Oryza and Related Genera (Poaceae: Oryzeae)?, Smithsonian Contributions to Botany, vol. 91, 2001.

, ?Molecular phylogenetic analysis of Oryza L. (Poaceae) and its consequences for historical biogeography, cytogenetics and morphological evolution?, in IBC, Vienna, 2005.

B. R.  Lu, ?Taxonomy of the genus Oryza (Poaceae): historical review and current status?, XVI International Botanical Congress Abstracts, 1999.

B. - R.  Lu, Naredo, E. B., B. Amita, J., and Jackson, M. T., ?Preliminary Studies on Taxonomy and Biosystematics of the AA Genome Oryza species (Poaceae)?, in Grasses, Systematics and Evolution, S. W. L.  Jacobs and Everett, J., Eds. Collingwood: CSIRO Publishing, 2000, pp. 51-58.

B. - R.  Lu, Naredo, E. B., and Juliano, A. B., ?A biosystematic study in the genus Oryza (Poaceae)?, in Monocots II Abstracts, K.  Wilson, Ed. Sydney: RBG, 1998, p. 74.

Y. - L.  Guo and Ge, S., ?Molecular Phylogeny of Oryzeae (Poaceae) based on DNA sequences from chloroplast, mitochondrial and nuclear genomes?, American Journal of Botany, vol. 92, pp. 1548-1558, 2005.