Gaya APA
Spiegel, M, R. (2004).
Statistik: berdasarkan schaums outline of theory and problems of statistics .
Jakarta:
Erlangga.
Gaya MLA
Spiegel, Murray, R.
"Statistik: berdasarkan schaums outline of theory and problems of statistics".
Jakarta:
Erlangga,
2004.
Text.