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Lua i Stíl Chicago (17ú heag.)Gopinath, Aruna. Pahang 1896-1914: Sultan Ahmad's Struggle and Failure in His Quest for Power and Political Survival. [Kuala Lumpur]: Jabatan Sejarah, Universiti Malaya, 1984.
Lua MLA (8ú heag.)Gopinath, Aruna. Pahang 1896-1914: Sultan Ahmad's Struggle and Failure in His Quest for Power and Political Survival. Jabatan Sejarah, Universiti Malaya, 1984.
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