Browsing by Subject "mental model,"

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    • The Effect of Mental Model on The Students Speaking Achievement 

      Manullang, Lusi Ovi Nasrani (2019-02-12)
      This study deals with the effect of mental model on speaking achievement of the eleventh grade students of SMA Negeri 4 Pematang Siantar. The objective of the study was to examine and prove whether or not mental model ...