Browsing by Author "Tan, Kim Hek"

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    • Dynamic modelling and forecasting the water price: A case of Medan, North Sumatera 

      Tan, Kim Hek; Zulkifli, Lubis; Mohammad Fadzli, Ramli; Siti Rohana, Goh (Institute of Engineering Mathematics, Universiti Malaysia Perlis, 2019-12)
      Water is an important element of life, hence must be preserved. In addition, the pricing of water supply must be consistent and optimal to ensure its sustainability. This paper describes the dynamic model in the forms of ...