TY  - BOOK
AU  - Edwards,Allen
ED  - Laloki Co-operative College (Papua New Guinea).
TI  - The hand-held calculator in a Third-world country
PY  - 1982///
CY  - Port Moresby
PB  - Numeracy Project, Laloki College
KW  - Number concept
KW  - Mathematics
KW  - Study and teaching
KW  - Papua New Guinea
KW  - Calculators
KW  - Non-formal education
ER  -