Syukron, A. (2014). Six Sigma Quality for Business Improvement. Graha Ilmu.
Lua i Stíl Chicago (17ú heag.)Syukron, Amin. Six Sigma Quality for Business Improvement. Graha Ilmu, 2014.
Lua MLA (8ú heag.)Syukron, Amin. Six Sigma Quality for Business Improvement. Graha Ilmu, 2014.
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