Baker, Kathleen M.; Chapman, Graham P. (2002): The Changing Geography of Asia, Routledge, ISBN 978-1-134-93384-6, s. 10f. Sitat: «This greater India is well defined in terms of topography; it is the Indian sub-continent, hemmed in by the Himalayas on the north, the Hindu Khush in the west and the Arakanese in the east.»
Anderson, Ewan W.; Anderson, Liam D. (2013): An Atlas of Middle Eastern Affairs, Routledge. ISBN 978-1-136-64862-5, s. 5. Sitat: «To the east, Iran, as a Gulf state, offers a generally accepted limit to the Middle East. However, Afghanistan, also a Muslim state, is then left in isolation. It is not accepted as a part of Central Asia and it is clearly not part of the Indian subcontinent.»