Singapore. Ministry of Education. Education Statistics Section. (1982). Key education statistics. Education Statistics Section, Computer Services Branch, Planning & Review Division, Ministry of Education.
Παραπομπή σε μορφή Chicago (17η εκδ.)Singapore. Ministry of Education. Education Statistics Section. Key Education Statistics. [Singapore]: Education Statistics Section, Computer Services Branch, Planning & Review Division, Ministry of Education, 1982.
Παραπομπή σε μορφή MLA (8th εκδ.)Singapore. Ministry of Education. Education Statistics Section. Key Education Statistics. Education Statistics Section, Computer Services Branch, Planning & Review Division, Ministry of Education, 1982.
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