Diagnostic study of the difficulties of pupils of standard 8 in addition and subtration in Algebra /
Jacob, K. C.
Diagnostic study of the difficulties of pupils of standard 8 in addition and subtration in Algebra / - 1964. - University of Kerala, Education MED theses, 1964,11 .
Diagnostic study of the difficulties of pupils of standard 8 in addition and subtration in Algebra / - 1964. - University of Kerala, Education MED theses, 1964,11 .