Reference : 63BNT/R-11,63BNT/R-12,63BNT/R-13

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

Scope and content : Ban Nong Tun, Thambon Khwao, Amphoe Muang, Changwat Maha Sarakham, Thailand,east=103.41014; north=16.12766

Extent and medium : Slide ดูเอกสารต้นฉบับ