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muhamad azhar nor sabli, mohd fahmy-abdullah, lai wei sieng.  (2019).  application of two-stage data envelopment analysis (dea) in identifying the technical efficiency and determinants in the plastic manufacturing industry in malaysia.  - international journal of supply chain management.  899-907. 

mohd fahmy-abdullah, lai wei sieng, hamdan muhammad isa.  (2019).  technical efficiency evaluation: study on malaysian electrical and electronics firms.  - asian academy of management journal.  1-19. 

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mohd fahmy-abdullah, lai wei sieng, sulhi ridzuan.  (2019).  analisis penyampulan data (dea) dua peringkat dalam mengenal pasti faktor penentu kecekapan teknik firma pembuatan pengangkutan.  - sains malaysiana.  901-908. 

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