Philippines-Australian Science and Mathematics Education Project & Western Australian Consortium of Tertiary Institutions. (1989). Solve it: Problem solving in mathematics III. Philippines-Australian Science and Mathematics Education Project.
Cita Chicago (17th ed.)Philippines-Australian Science and Mathematics Education Project i Western Australian Consortium of Tertiary Institutions. Solve It: Problem Solving in Mathematics III. [Perth, Western Australia: Philippines-Australian Science and Mathematics Education Project, 1989.
Cita MLA (9th ed.)Philippines-Australian Science and Mathematics Education Project i Western Australian Consortium of Tertiary Institutions. Solve It: Problem Solving in Mathematics III. Philippines-Australian Science and Mathematics Education Project, 1989.