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By: Piggott, A GType: ArticleIn: The Gardens' bulletin, SingaporeVolume: 34Series: 4Issue:Date: 1981Page Range: 170--176Publication Info: Singapore, Govt. Print. Off. [etc.],Subjects:
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By: Piggott, A GType: ArticleIn: The Gardens' bulletin, SingaporeVolume: 30Series: 4Issue:Date: 1977Page Range: 31--43Publication Info: Singapore, Govt. Print. Off. [etc.],Subjects: