Prajak Ponroung. 1993. Factors affecting decision making of groups of production credit. Graduate School, Khon Kaen University;

Prajak Ponroung. Factors affecting decision making of groups of production credit. . Khon Kaen:Khon Kaen University, 1993.

Prajak Ponroung. (1993) Factors affecting decision making of groups of production credit . Khon Kaen University/Khon Kaen.