TY  - BOOK
ED  - Indigenous Mathematics Project.
TI  - Teachers notes and student worksheets, grade 4, term 3
T2  - Working paper
PY  - 1980///
CY  - [Port Moresby]
PB  - Indigenous Mathematics Project
KW  - Arithmetic
KW  - Problems, excercises, etc
KW  - Mathematics
KW  - Study and teaching (Primary)
KW  - Papua New Guinea
ER  -