Gaya APA
AMAL, I. (1992).
Regional and central government in indonesia politic (cet. 1).
Yogyakarta:
Gajah Mada University.
Gaya MLA
AMAL, Ichlasul.
"Regional and central government in indonesia politic".
cet. 1
Yogyakarta:
Gajah Mada University,
1992.
Buku.