Indriaswaty Dyah Saptaningrum
UNDP, 2008
Buku Teks SO
Bradley, Harriet
Polity press, 2007
Buku Teks
Irwan Abdulah
Yogyakarta Tarawang Press 2001,
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Sali Susiana
Secretaria General of the house of Representatives of the Republic of Indonesia, 2008
Buku Teks SO
Widjajanti M. Santoso
LIPI, 2016
Buku Teks SO