Purnawidhi W. Purbacaraka
Rajawali, 1978
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Purnawidhi W. Purbacaraka
Rajawali, 1987
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Soedjono Hoemardani
Centre for Strategic and International Studies, 1981
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Purnawidhi W. Purbacaraka
Rajawali, 1994
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Purnawidhi W. Purbacaraka
Rajawali , 1985
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