Clegg, B. (2001). Instant motivation: 79 cara instan menumbuhkan motivas/Brian Clegg, Paul Birch. Erlangga.
Lua i Stíl Chicago (17ú heag.)Clegg, Brian. Instant Motivation: 79 Cara Instan Menumbuhkan Motivas/Brian Clegg, Paul Birch. Erlangga, 2001.
Lua MLA (8ú heag.)Clegg, Brian. Instant Motivation: 79 Cara Instan Menumbuhkan Motivas/Brian Clegg, Paul Birch. Erlangga, 2001.
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