Gaya APA
Winardi, ., Brennan, M, J.
(1980).
Pengantar ekonomi matematika = preface to economics
.
Bandung:
Alumni.
Gaya MLA
Winardi, ., Brennan, M, J.
"Pengantar ekonomi matematika = preface to economics".
Bandung:
Alumni,
1980.
Text.