Ong, B. S. (2005). Mathematics for matriculation semester 1. Penerbit Fajar Bakti.
芝加哥风格引文Ong, Beng Sim. Mathematics for Matriculation Semester 1. Shah Alam, Selangor Darul Ehsan: Penerbit Fajar Bakti, 2005.
MLA引文Ong, Beng Sim. Mathematics for Matriculation Semester 1. Penerbit Fajar Bakti, 2005.
警告：这些引文格式不一定是100％准确.