Mapping the Tibetan World
by Atsushi Kanamaru (Editor), Kotan Publishing

Sikkim : A Traveller's Guide
by Arundhati Ray, Sujoy Das
Paperback: 160 pages; 1 edition (January 2, 2001)

Trekking and Climbing in the Indian Himalaya (Trekking & Climbing Guides)
by Harish Kapadia

Lonely Planet Indian Himalaya (2nd Ed)
by Bradley Mayhew, Richard Plunkett, Michelle Coxall, Phillipa Saxton

Indian Himalaya Handbook (Footprint Handbooks)
by Robert Bradneck, Roma Bradneck, Robert Bradnock, Roma Bradnock

Insight Pocket Guides Sikkim (Serial)
by Insight Guides Staff
Paperback: (August 2000)

Mountaintop Kingdom: Sikkim
by Alice S. Kandel, 205 pages

A Tale From Ladakh - Growing up in Little Tibet
By Jaideep and Suniti Mukerji
http://www.gorp.com/gorp/location/asia/india/ladakh1.htm