An active academic , Puey was simultaneously Dean of the Faculty of Economics of Thammasat University from 1964 to 1972 . In 1975 he was appointed Rector of Thammasat University , but resigned in protest following the massacre of student protesters on 6 October 1976 . Tarred by nationalists as a leftist subversive , he was subsequently forced to flee the country for fear of his is safety , residing in the United Kingdom until his death in 1999
massacre of student protesters on 6 October 1976
Thammasat University massacre
Puey Ungphakorn