Yap, Y. K. (1982). Addition and subtraction of fractions: Analysis of errors of a sample of Standard Six pupils.
Chicago Style (17th ed.) CitationYap, Yee Khiong. Addition and Subtraction of Fractions: Analysis of Errors of a Sample of Standard Six Pupils. 1982.
MLA (8th ed.) CitationYap, Yee Khiong. Addition and Subtraction of Fractions: Analysis of Errors of a Sample of Standard Six Pupils. 1982.
Warning: These citations may not always be 100% accurate.