hiː hˈæzbiːn ˈæktɪv æt ðə tˈaɪlənd dɪvˈɛləpmənt ɹᵻsˈɜːtʃ ˈɪnstɪtˌuːt tˈiːdɹˈaɪ æz ɐ pɹˈoʊɡɹæm dᵻɹˈɛktɚ fɔːɹ ˈæɡɹɪkˌʌltʃɚ ænd ɹˈʊɹɹəl dɪvˈɛləpmənt, ænd æz pɹˈɛzɪdənt ʌv tˈiːdɹˈaɪ ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪnti dˈæʃ nˈaɪntiːnhˈʌndɹɪd nˈaɪnti fˈaɪv.
He has been active at the Thailand Development Research Institute (TDRI) as a program director for agriculture and rural development, and as president of TDRI in 1990-1995.