Secondary school mathematics :  a course for grade 9 students  9A, 9B / 
Papua New Guinea. Dept. of Education. 
 - Papua New Guinea :  Dept. of Education,  1991. 
 - 2. v. 
<br/><br/> "This book was written by the Dept. of Education, Papua New Guinea using material from Secondary School Mathematics 9A & 9B (1986) and Secondary School Mathematics 10A & 10B (1987) with additional material from G.P. Wilson, S.B. Jones, K. E. Couchman, and the Mathematics Syllabus Advisory Committee"--verso Tp. 
<br/><br/><label>ISBN: </label>0859249832 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Problems, exercises etc.<br/>Mathematics--Juvenile literature.