Shyam Singh Shashi (2005), Encyclopaedia of Indian Tribes, Anmol Publications Pvt Ltd, ISBN 81-7041-836-4, http://books.google.cat/?id=pQh48ov8BrwC, "... The main hill range runs from the north to south. Average height of the hills is 300m to 400m. The highest peak of this is Mount Thullier..."
