01 / 18Big Think≈ perkiraan levelA20:56–1:05 , , , .
02 / 18Big Think≈ perkiraan levelA24:19–4:22
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03 / 18The Economist≈ perkiraan levelA23:51–3:54
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04 / 18The Economist≈ perkiraan levelC11:21–1:30
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05 / 18TED≈ perkiraan levelA28:46–8:51
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06 / 18TED≈ perkiraan levelC13:40–3:52
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07 / 18The Economist≈ perkiraan levelB12:54–3:05
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08 / 18The Economist≈ perkiraan levelA22:28–2:40
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09 / 18TED≈ perkiraan levelB210:07–10:16
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10 / 18The Economist≈ perkiraan levelA20:00–0:03
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11 / 18CNBC Make It≈ perkiraan levelB25:36–5:42
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12 / 18TED≈ perkiraan levelB12:22–2:26
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13 / 18The Economist≈ perkiraan levelC11:31–1:39
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14 / 18The Economist≈ perkiraan levelB13:29–3:36
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15 / 18The Economist≈ perkiraan levelB11:52–1:58
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16 / 18CNBC Make It≈ perkiraan levelC17:57–8:04
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17 / 18The Economist≈ perkiraan levelC12:24–2:32
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18 / 18Lex Clips≈ perkiraan levelC18:12–8:30
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