D.E. Wilson & D.M. Reeder (red. red.): Species Sigmodontomys alfari. [w:] Mammal Species of the World. A Taxonomic and Geographic Reference (Wyd. 3) [on-line]. Johns Hopkins University Press, 2005. [dostęp 2020-11-30].
D.E. Wilson & D.M. Reeder (red. red.): Genus Sigmodontomys. [w:] Mammal Species of the World. A Taxonomic and Geographic Reference (Wyd. 3) [on-line]. Johns Hopkins University Press, 2005. [dostęp 2020-11-30].
doi.org
R.H. Pine, R.M. Timm & M. Weksler. A newly recognized clade of trans-Andean Oryzomyini (Rodentia: Cricetidae), with description of a new genus. „Journal of Mammalogy”. 93 (3), s. 851–870, 2012. DOI: 10.1644/11-MAMM-A-012.1. (ang.).