Notes on schemes for Tribal Government (incomplete); memorandum on proposed education scheme and for Tribal areas and Sadiya, Tirap and Balipara Frontier Tracts by G E D Walker; Blue Print for Sadiya: a post-war reconstruction plan for Sadiya Frontier Tract, by G E D Walker Dated as: nd; c1946;...
Annotated Outline Grammar of the Singpho language, as spoken by the Singpho, Dowanniyas and others, residing in the neighbourhood of Sadiya, with illustrative sentences, phrasebook and vocabulary: J F Needham Dated as: Shillong 1889