Pongchan Chandayot. 1989. The development of a model doctoral program in science education for Thailand based on the study of programs in The United States. Department of Curriculum and Instruction, Illinois State University;
Pongchan Chandayot. (1989) The development of a model doctoral program in science education for Thailand based on the study of programs in The United States . Illinois State University/Illinois.
Pongchan Chandayot. The development of a model doctoral program in science education for Thailand based on the study of programs in The United States. . Illinois:Illinois State University, 1989.
Pongchan Chandayot. (1989) The development of a model doctoral program in science education for Thailand based on the study of programs in The United States . Illinois State University/Illinois.