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Reducing the nonconforming products by using the Six Sigma method: A case study of a polyes-ter short cut fiber manufacturing in Indonesia

Involved: Oky Syafwiratama; Humiras Hardi Purba

Year: 2017-03-01

Published in: Management Science Letters

Link(s): DOAJ

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Product and Service Quality Analysis: An Empirical Study of Customer Satisfaction in a Bakery

Involved: Aina Nindiani; Humiras Hardi Purba

Year: 2018-07-01

Published in: Binus Business Review

Link(s): DOAJ