Gaya APA
Fleiss, J, L.
(1981).
Statistical Methods For Rates And Profession
(
Edisi 2)
.
New York:
John Wiley & Sons.
Gaya MLA
Fleiss, Joseph, L.
"Statistical Methods For Rates And Profession".
Edisi 2
New York:
John Wiley & Sons,
1981.
Textbook.