Teo, S., Tiang, K. M., Primalani, V., Leng, C. M., Quek, K., & Meng, S. K. (2003). In step maths: Textbook. SNP Panpac.
Chicago Style aipamenaTeo, Shirley, Kang Mui Tiang, Varsha Primalani, Chan Mei Leng, Karen Quek, and Sin Kwai Meng. In Step Maths: Textbook. Singapore: SNP Panpac, 2003.
MLA aipamenaTeo, Shirley, et al. In Step Maths: Textbook. SNP Panpac, 2003.
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