Sparkes, A.W.
Talking philosophy: a wordbook
Routledge, 1991
 Buku Teks SO
Jurnal ilmu politik 3
oleh Asosiasi Ilmu Politik
Gramedia Pustaka Utama, 1988
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Dyke, Vernon van
Introduction to politics
Nelson, 1992
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Renwick, Alan.
Basic political concepts/Renwick, Alan; Swinburn, Ian
Stanley Thornes Publishing, 1993
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Pye, Keith
British politics: edieas and concepts
Stanley Thornes , 1992
 Buku Teks SO