Title: Khrōngkān sưksā phư̄a phatthanā krabūankān singwǣtlō̜m sưksā thī mo̜som kap bōribot khō̜ng rōngrīan Thai
Description: Studies on the development of environmental education process suitable for circumstances of Thai schools, case study at 20 secondary schools in four provinces of Northeastern Thailand.