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http://www.singstat.gov.sg/publications/publications_and_papers/cop2000/census10_stat_release1.html
on 20 April 2015.
2. Ministry of Education (Singapore). (1971). Chinese Language Syllabus and Teaching Guide for Primary Schools.
3. Ministry of Education (Singapore). (1973). Syllabus for Chinese Language in Chinese and English Secondary Schools.
4. Ministry of Education (Singapore). (1981). Chinese Language Syllabus for Primary Schools.
5. Ministry of Education (Singapore). (1983). Chinese Language Syllabus for Secondary Schools.