Gaya APA
YU, A, B, C., 2017-10-12, .
().
1301151017
(
Textbook)
.
600:
2017-10-12.
Gaya MLA
YU, Andrew, B., C.., 2017-10-12, .
"1301151017".
Textbook
600:
2017-10-12,
.
616.014 EKA b.