This study seeks to identify the reasons of misconceptions among high school students in Palembang City as well as the validity and reliability of the three-tier diagnostic test on ecosystem component material among high school students. This study makes use of Treagust's development approach, which consists of three key steps: content definition, obtaining information about stundent misconcept…
Crude Palm Oil (CPO) memiliki posisi penting bagi perekonomian indonesia yang harganya terus mengalami kenaikan dan penurunan, sehingga membuat permasalahan bagi pengekspor maupun pedagang kesulitan dalam mendapat keuntungan. Penelitian ini menggunakan metode Single Exponenetial Smoothing dan Fuzzy Time Series Cheng, dan data yang digunakan dalam penelitian ini yaitu harga CPO sebanyak 72 data.…