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*[http://www.archive.org/stream/frontieroverseas01indi#page/n11/mode/2up ''Frontier and Overseas Expeditions from India: Volume 1 Tribes north of the Kabul River''] by Intelligence Branch Army Headquarters India 1907 Archive.org. There is a supplement ''Frontier and Overseas Expeditions from India Volume 1, supplement A: Operations against the Mohmands (including operations in the Khaiber, 1st-7th May'') which is available to read online on the [[Online books#Digital Library of India| Digital Library of India]] website, under the title ''Operations against the Mohmands'', barcode 4990010028652. Unfortunately the file is somewhat unsatisfactory. There is no Contents page and many pages are duplicated. For Chapter 2, go to computer page 21, and for Chapter 3, cp 29. At least the following pages appear to be missing in addition to the Contents: (actual) p 34-35 and Appendix page i. The supplement ''Operations against the Mohmands'' is also available to download as a pdf from [[Online books#Pahar-Mountains of Central Asia Digital Dataset|Pahar-Mountains of Central Asia Digital Dataset]], located under Books, Indian Subcontinent, 1908.

*''Frontier and Overseas Expeditions from India Volume 2. North-West Frontier Tribes between the Kabul and Gumal Rivers'' by Intelligence Branch Army Headquarters India 1908 is available to download as a pdf from [[Online books#Pahar-Mountains of Central Asia Digital Dataset|Pahar-Mountains of Central Asia Digital Dataset]], located under Books, Indian Subcontinent, 1908. It is also available to download as as a pdf from the Digital Library of India: [http://dli.serc.iisc.ernet.in/handle/2015/116166 1908 pdf download], [http://dli.serc.iisc.ernet.in/handle/2015/96937 2004 reprint edition]. There is a supplement [https://archive.org/details/FrontierAndOverseasExpeditionsFromIndiaVolII ''Frontier and Overseas Expeditions from India Volume 2 Supplement A ,Operations against the Zakka Khel Afridis''] Intelligence Branch Army Headquarters India 1908 Archive.org. May require a Djvu or BitTorrent plug in for ease of reading. This book is also available to read online on the [[Online books#Digital Library of India| Digital Library of India]] website, catalogued as "Frontier And Overseas Expeditions From India(Vol Ii)" 1908 as a [http://dli.serc.iisc.ernet.in/handle/2015/173295 pdf download].

*[http://archive.org/stream/someprinciplesof00bird#page/n1/mode/2up ''Some Principles of Frontier Mountain Warfare''] by Brevet-Major W. D. Bird 1909 Archive.org

*[http://www.archive.org/stream/campaignsonnorth00nevi#page/n5/mode/2up ''Campaigns on the North-West Frontier''] by Capt H.L.Nevill DSO 1912 (archive.org)<br>