Phyrr, Peter A.
London: John & Wiley, 1973,
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John Wiley & Sons, 1973
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Rachmadi Agus Triono, author
Salemba Empat, 2012
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Schroeff, Henri J. van der, author
Ghalia Indonesia, 1990
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Edi Sukarno
Jakarta Gramedia Pustaka Utama 2000
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