Usa Jeenjenkit. 2010. Guided-inquiry units on factors affecting chemical reaction rate for secondary students and pre-service teachers. , Mahidol University;
Usa Jeenjenkit. (2010) Guided-inquiry units on factors affecting chemical reaction rate for secondary students and pre-service teachers . Mahidol University/Bangkok.
Usa Jeenjenkit. Guided-inquiry units on factors affecting chemical reaction rate for secondary students and pre-service teachers. . Bangkok:Mahidol University, 2010.
Usa Jeenjenkit. (2010) Guided-inquiry units on factors affecting chemical reaction rate for secondary students and pre-service teachers . Mahidol University/Bangkok.