Reference : 63MK/Wapi-1,63MK/Wapi-2
Name of creator(s) : Keyes, Charles F.
Scope and content : Amphoe Wapipathum, Changwat Maha Sarakham, Thailand,east=103.340912; north=15.859531
Extent and medium : Slide ดูเอกสารต้นฉบับ