Gaya APA
T.Craig, R., V., A. (1995).
INTRODUCTION TO MATHEMATICAL STATISTICS FIFTH EDITION (fifth Edition).
USA:
Prentice-Hall, Inc.
Gaya MLA
T.Craig, Robert, V.Horg,, Allen.
"INTRODUCTION TO MATHEMATICAL STATISTICS FIFTH EDITION".
fifth Edition
USA:
Prentice-Hall, Inc,
1995.
Buku Inti.