Amos, H.F. Abraham, author
RajaGrafindo Persada, 2007
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Amos, H.F. Abraham, author
RajaGrafindo Persada, 2005
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Universitas Indonesia, 2000
UI - Skripsi (Membership)
Saldi Isra, author
Rajawali Pers, 2019
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Daulay, Ikhsan Rosyada Parluhutan, author
Rineka Cipta, 2006
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