Gaya APA
Purba, H.
(1997).
Standar tes UMPTN 1997
(
cet.1)
.
Jakarta:
SS Press.
Gaya MLA
Purba, Harapan.
"Standar tes UMPTN 1997".
cet.1
Jakarta:
SS Press,
1997.
Printed Book.