Reference : 6846.10,6846.11,6846.12,6846.15,6846.16,6846.18

Name of creator(s) : Keyes, Charles F.

Scope and content : Amphoe Si Satchanalai, Changwat Phrae, Thailand,east=99.759778; north=17.516917

Extent and medium : Slide ดูเอกสารต้นฉบับ