This work formerly enjoyed copyright in Singapore but is now in the public domain because its term of copyright has expired. According to the Copyright Act (Cap. 63) of Singapore:
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published edition of a work or works
it was first published before 10 April 1987; or
if it was published on or after 10 April 1987, 25 years have passed since the end of the calendar year in which it was first published (that is, before or in 1998)
section 96
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