Gaya APA

Spiegel, M., Abdulgani, R. (s.a.). Statistics (theory And Problems In S1 Units) (Ed. 1). Singapore: Schaum's outline Series-McGraw-Hill International Book Company.

Gaya MLA

Spiegel, Murray., Abdulgani, Roeslan. "Statistics (theory And Problems In S1 Units)". Ed. 1 Singapore: Schaum's outline Series-McGraw-Hill International Book Company, s.a.. Text.