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101
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102
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103by Cooperative Research Centre for Coal in Sustainable DevelopmentSubjects: “...Perubahan Teknologi...”
Published 2006
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104
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105
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106
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107
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108
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109
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110Published 1990Subjects: “...Sosial-Perubahan...”
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111Subjects: “...Cuaca, Perubahan...”
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112
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113
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114
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115
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116
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117
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118by Robert C. Balling Introduction by Aaron WildavskySubjects: “...Iklim (Perubahan)...”
Published
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119
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120