45、 Sketch map of part of Tibet showing the explorations and journeys of Dr. Sven Hedin, 1906-1908 1906
Royal Geographical Society (Great Britain) - W. & A.K. Johnston, Limited著
46、 Tibet and the surrounding regions : compiled from the latest information 1900
Sharbau, H. (Henry) - Royal Geographical Society (Great Britain) - Sharbau, H.著