Guide Books:

 

Some useful links:

 Map of everest region

    Nepal Tourism Board

Nepal Mountanering Association

Kathmandu Environmental Education Project

Himalayan Rescue Association

   Trekking Agents Associations of Nepal

 

High altitude Medicine Books:

 The High altitude medicine book By Andrew J Pollard &David R. MUrchard.

High altitude medicine and Physiology By: Michael p. ward, James s., John h. West

High altitude illness and wellness By, Charles Houston