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Chen, A. J.; Emmanuel, S. C.; Ling, S. L.; Kwa, S. B. (1985). "Legalized Abortion: The Singapore Experience". Studies in Family Planning. 16 (3): 170–178. doi:10.2307/1967019. ISSN0039-3665. JSTOR1967019. PMID4012821.
Henshaw, Stanley K.; Singh, Susheela; Haas, Taylor (1999). "Recent Trends in Abortion Rates Worldwide". International Family Planning Perspectives. 25 (1): 44. doi:10.2307/2991902. JSTOR2991902.
Singh, K.; Fai, F.Y.; Prasad, R.N.V.; Ratnam, S.S. (1996). "Abortion Trends in Singapore: A 25-Year Review". Journal of Pediatric and Adolescent Gynecology. 9 (1): 27–30. doi:10.1016/s1083-3188(96)70007-4. ISSN1083-3188. PMID9551373.
Chen, A. J.; Emmanuel, S. C.; Ling, S. L.; Kwa, S. B. (1985). "Legalized Abortion: The Singapore Experience". Studies in Family Planning. 16 (3): 170–178. doi:10.2307/1967019. ISSN0039-3665. JSTOR1967019. PMID4012821.
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Singh, Kuldip; Fong, Y.F.; Loh, S.Y. (2002). "Profile of women presenting for abortions in Singapore at the National University Hospital". Contraception. 66 (1): 41–46. doi:10.1016/s0010-7824(02)00317-7. ISSN0010-7824. PMID12169380.
Kee, Ho Peng (1993). "Abortion in Singapore: a Legal Perspective". International and Comparative Law Quarterly. 42 (2): 382–397. doi:10.1093/iclqaj/42.2.382. ISSN0020-5893.
Singh, K.; Fai, F.Y.; Prasad, R.N.V.; Ratnam, S.S. (1996). "Abortion Trends in Singapore: A 25-Year Review". Journal of Pediatric and Adolescent Gynecology. 9 (1): 27–30. doi:10.1016/s1083-3188(96)70007-4. ISSN1083-3188. PMID9551373.
Chen, A. J.; Emmanuel, S. C.; Ling, S. L.; Kwa, S. B. (1985). "Legalized Abortion: The Singapore Experience". Studies in Family Planning. 16 (3): 170–178. doi:10.2307/1967019. ISSN0039-3665. JSTOR1967019. PMID4012821.
Singh, Kuldip; Fong, Y.F.; Loh, S.Y. (2002). "Profile of women presenting for abortions in Singapore at the National University Hospital". Contraception. 66 (1): 41–46. doi:10.1016/s0010-7824(02)00317-7. ISSN0010-7824. PMID12169380.