Primalani, V., Leng, C. M., Quek, K., & Meng, S. K. (2003). In step maths: Workbook. SNP Panpac.
Dyfyniad Arddull ChicagoPrimalani, Varsha, Chan Mei Leng, Karen Quek, and Sin Kwai Meng. In Step Maths: Workbook. Singapore: SNP Panpac, 2003.
Dyfyniad MLAPrimalani, Varsha, et al. In Step Maths: Workbook. SNP Panpac, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.