Gaya APA
Cleves, M, A. et al
(2010).
An Introduction to Survival Analysis Using Stata
(
3)
.
Texas:
Stata Press.
Gaya MLA
Cleves, Mario, A. et al.
"An Introduction to Survival Analysis Using Stata".
3
Texas:
Stata Press,
2010.
Hardcopy (Textbook).