TY  - BOOK
AU  - Krishnan,Shanti Radha
TI  - Conceptual change in chemistry through cooperative problem-solving
PY  - 1991///
CY  - Ann Arbor, Mich.
PB  - University Microfilms International
KW  - Concept learning
KW  - Problem solving
N1  - Thesis (Ph.D.)-North Carolina State University, 1991
ER  -