Title: Khrōngkān tittām trūatsō̜p khunnaphāp singwǣtlō̜m khō̜ng lamnam sāi lak nai phư̄nthī 7 čhangwat Phāk Tawanʻō̜k Chīang Nư̄a tō̜n bon
Description: Report on the environmental study of river basins in seven provinces in Northeastern Thailand.