↑John McLeod, The history of India, page 1, Greenwood Publishing Group, 2002, আই.এচ.বি.এন.0-313-31459-4; note: McLeod does not include Afghanistan in Indian subcontinent or South Asia; Jim Norwine & Alfonso González, The Third World: states of mind and being, pages 209, Taylor & Francis, 1988, আই.এচ.বি.এন.0-04-910121-8 Raj S. Bhopal, Ethnicity, race, and health in multicultural societies, pages 33, Oxford University Press, 2007, আই.এচ.বি.এন.0-19-856817-7; Quote: "The term South Asian refers to populations originating from the Indian subcontinent, effectively India, Pakistan, Bangladesh and Sri Lanka; Lucian W. Pye & Mary W. Pye, Asian Power and Politics, pages 133, Harvard University Press, 1985, আই.এচ.বি.এন.0-674-04979-9 Mark Juergensmeyer, The Oxford handbook of global religions, pages 465, Oxford University Press US, 2006, আই.এচ.বি.এন.0-19-513798-1 Sugata Bose & Ayesha Jalal, Modern South Asia, pages 3, Routledge, 2004, আই.এচ.বি.এন.0-415-30787-2
↑Ewan W. Anderson; Liam D. Anderson (2013). An Atlas of Middle Eastern Affairs. Routledge. পৃষ্ঠা. 5. ISBN978-1-136-64862-5. https://books.google.com/books?id=n-VJAgAAQBAJ&pg=PA5., Quote: "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".