Cole CJ, Townsend CR, Reynolds RP, MacCulloch RD, Lathrop A (2013). "Amphibians and reptiles of Guyana, South America: Illustrated keys, annotated species accounts, and a biogeographic synopsis". Proceedings of the Biological Society of Washington. 125 (4): 317–620. doi:10.2988/0006-324x-125.4.317. S2CID86665287.
iucnredlist.org
Flores-Villela, O.; Porras, L.W.; Solórzano, A.; Sunyer, J.; Gutiérrez-Cárdenas, P.; Rivas, G.; Renjifo, J.; Caicedo, J.; Nogueira, C.; Murphy, J. (2019). "Sibon nebulatus". IUCN Red List of Threatened Species. 2019: e.T198423A2526296. Retrieved 20 November 2021.
Cole CJ, Townsend CR, Reynolds RP, MacCulloch RD, Lathrop A (2013). "Amphibians and reptiles of Guyana, South America: Illustrated keys, annotated species accounts, and a biogeographic synopsis". Proceedings of the Biological Society of Washington. 125 (4): 317–620. doi:10.2988/0006-324x-125.4.317. S2CID86665287.
tropicalherping.com
Arteaga, Alejandro; Bustamante, Lucas; Guayasamin, Juan M. Reptiles of Ecuador. Ecuador: Tropical Herping. Retrieved 2020-06-15.