Ng, H. H., and R. K. Hadiaty. “Glyptothorax ketambe, a New Catfish (Teleostei: Sisoridae) from Northern Sumatra”. Zootaxa, vol. 2085, no. 1, Apr. 2009, pp. 61–68, doi:10.11646/zootaxa.2085.1.5.