I. forstenii can be found on Sulawesi Island of Indonesia, and its nearby islands such as Halmahera island. In Sulawesi, it is found in the central and northern parts of the island.[4]
^Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN978-1-4214-0135-5. (Indotestudo forstenii, p. 92).
Boulenger GA (1907). "A new tortoise from Travancore". Journal of the Bombay Natural History Society17: 560–564.
Iverson JB, Spinks PQ, Shaffer HB, McCord WP, Das I (2001). "Phylogenetic relationships among the Asian tortoises of the genus Indotestudo (Reptilia: Testudines: Testudinidae)". Hamadryad26 (2): 271–274.
Pritchard PCH (2000). "Indotestudo travancorica. A Valid Species of Tortoise?" Reptile & Amphibian Hobbyist5 (2): 18–28.
Radhakrishnan C (1998). "Additional record of the travancore tortoise, Indotestudo forstenii (Schlegel & Müller) (Testudinita: Reptilia) in Kerala". Cobra34 (Oct.–Dec.): 19–20.
Schlegel H, Müller S (1845). "Over de Schildpadden van den Indischen Archipel ". pp. 29–36. In:Temminck CJ (1839–1847) Verhandelingen over de Natuurlijke Geschiedenis der Nederlandische overzeesche bezittingen, door de leden der Natuurkundige Commisië in Oost-Indie en andere Schrijvers. Part 3, Zoologie, Schildpadden. Leiden: Luchtmans and van der Hoek. (Testudo forstenii, new species). (in Dutch).