National mathematics textbook
Papua New Guinea, Department of Education
Papua New Guinea, Dept. of Education, 2019
Study with your friends, mathematics for elementary school
"This book is based on "Study with your friends, mathematics for elementary school" published : Tokyo : Gakkohtosho, [2011?]"--From editorial supervisor Masami Isoda
"The National Mathematics Textbook was developed by curriculum development division (CDD), Department of Education in partnership with Japan International Cooperation Agency (JICA) through the Project for Improving the Quality of Mathematics and Science Education (QUIS-ME project)"--Last page