Pradtana Yossuck. 1999. Factors contributing to the viability of farmer associations in northern Thailand : multiple case study. Faculty of Graduate School, University of Missouri-Columbia;
Pradtana Yossuck. (1999) Factors contributing to the viability of farmer associations in northern Thailand : multiple case study . University of Missouri-Columbia/Missouri.
Pradtana Yossuck. Factors contributing to the viability of farmer associations in northern Thailand : multiple case study. . Missouri:University of Missouri-Columbia, 1999.
Pradtana Yossuck. (1999) Factors contributing to the viability of farmer associations in northern Thailand : multiple case study . University of Missouri-Columbia/Missouri.