think! mathematics. 1A, Workbook / authors, Dr Foong Pui Yee, Brandon Oh, Chang Suo Hui, Lim Li Gek, Pearlyn and Wong Oon Hua ; consultant and authors, Dr Yeap Ban Har, Dr William C. Tozzo, Dr Amy L. Butterfield-Tozzo.
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"The Singapore mathematics approach."--Cover. Primary 1.
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think! mathematics. 1A, Workbook / authors, Dr Foong Pui Yee, Brandon Oh, Chang Suo Hui, Lim Li Gek, Pearlyn and Wong Oon Hua ; consultant and authors, Dr Yeap Ban Har, Dr William C. Tozzo, Dr Amy L. Butterfield-Tozzo.
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Chang, Suo Hui, author. http://id.loc.gov/authorities/names/no2015015212. http://viaf.org/viaf/313504459.