Trial workbooks for grade 9 : 9.9 circles.
- Port Moresby : Department of Education, 1982.
- 40 p. : ill. ; 29 cm.
- Mathematics our way .
Cover title.
Circle--Study and teaching--Papua New Guinea.
Mathematics--Study and teaching--Papua New Guinea.
Cover title.
Circle--Study and teaching--Papua New Guinea.
Mathematics--Study and teaching--Papua New Guinea.