Gaya APA
SITUMORANG, .
(1983).
Prospectus on Technical and Vocational Education 1983
(
1)
.
Jakarta:
Departemen P & K.
Gaya MLA
SITUMORANG, .
"Prospectus on Technical and Vocational Education 1983".
1
Jakarta:
Departemen P & K,
1983.
Printed.