[publisher not identified], [date of publication not identified]
Naskah
[publisher not identified], [date of publication not identified]
Naskah
Stroud, K. A., author
Erlangga, 2003
Buku Teks
[publisher not identified], [date of publication not identified]
Naskah
Arens, Alvin A., author
Erlangga , 1994
Buku Teks