Gaya APA
Dpp hippi keppres 18 1981 Keppres 10 Keppres 14A keppres 15 1980
.
(1980).
Jakarta:
Mary Beth Finch.
Gaya MLA
Dpp hippi keppres 18 1981 Keppres 10 Keppres 14A keppres 15 1980
.
.
Jakarta:
Mary Beth Finch,
1980.
Text.