Foong. New Syllabus Primary Mathematics 4A: COURSEBOOK. Shinglee Publishers.
Cita Chicago (17th ed.)Foong. New Syllabus Primary Mathematics 4A: COURSEBOOK. Shinglee Publishers.
Cita MLA (9th ed.)Foong. New Syllabus Primary Mathematics 4A: COURSEBOOK. Shinglee Publishers.
Atenció: Aquestes cites poden no estar 100% correctes.