Manat Boonprakob. 1994. The development of a curriculum model for teaching science in secondary schools in Thailand. Department of Curriculum and Instruction, Illinois State University;
Manat Boonprakob. (1994) The development of a curriculum model for teaching science in secondary schools in Thailand . Illinois State University/Illinois.
Manat Boonprakob. The development of a curriculum model for teaching science in secondary schools in Thailand. . Illinois:Illinois State University, 1994.
Manat Boonprakob. (1994) The development of a curriculum model for teaching science in secondary schools in Thailand . Illinois State University/Illinois.